species
species on World Data Ocean: a running collection of 25 stories we have gathered and hand-picked because they are worth your time. Every post here touches on species in some way — the news, the analysis, the deep dives, and the occasional surprise find. A Global Hub for Ocean Intelligence 4 World Data Ocean is a centralized digital platform where researchers, scientists, and ocean enthusiasts converge to explore, analyze, and… New stories are added to this page as we find them, so check back if you want to keep up with what is happening around species, or subscribe to the RSS feed to get them as soon as they are published. Browse the collection below, or head back to the homepage to see everything World Data Ocean is covering right now.
Found this little worm in Istria, Croatia. ID?
A fascinating marine invertebrate has been discovered in Istria, Croatia, prompting a request for identification on Reddit (see [link]). World Data Ocean’s scientific team is analyzing the submitted video to determine the species. This observation highlights the ongoing importance of citizen science and data collection for understanding marine biodiversity. For further exploration of marine findings, see our recent article, "help identifying cartilage found on Block Island," which details a unique discovery from Rhode Island.
Oarfish diet question!! What kind of squid do they eat?
The elusive diet of oarfish remains a subject of ongoing scientific inquiry. While observations confirm squid as a primary food source, specific species remain largely undocumented—a challenge for artists seeking accurate representation. Empirical evidence suggests oarfish opportunistically consume various deep-sea squid, likely prioritizing those encountered at their foraging depths. Sculptors aiming for detail might consider representing a generic, deep-water squid morphology rather than a specific, definitively validated species.
Spotted in Friday Harbor, WA. Is this a decorator crab?
A fascinating observation from Friday Harbor, Washington, has sparked discussion regarding a potential decorator crab sighting. Submitted by /u/hikingbotanist, the video depicts two unique crustaceans observed amongst a population of shrimp along the pier. While initial iNaturalist identification suggests a decorator crab, discrepancies with existing imagery prompt further investigation. This observation highlights the ongoing need for robust species identification and underscores the interconnectedness of marine ecosystems, as explored in our recent article, "The world agreed to protect 30% of the ocean by 2030."
Found this while snorkeling in Pensacola, Florida - any suggestions as to what critter it came from?
A curious discovery from Pensacola, Florida! /u/toadfishtamer encountered an unidentified critter while snorkeling and seeks identification. Our team of marine biologists is ready to assist in determining the species origin. Submit detailed images and location data for optimal analysis. Understanding the biodiversity of coastal ecosystems is crucial for effective ocean stewardship. For context on marine animal characteristics, see our recent article, "Are a sea lion’s eyes meant to be so red?" Explore our resources to deepen your understanding of ocean life.
From a non-biologist: are a sea lion’s eyes meant to be so red? Found on a seal/sea lion insta account
The striking red coloration observed in a sea lion’s eyes, as recently shared online, warrants scientific clarification. While the appearance can be startling, this pigmentation is typically due to a combination of factors including blood vessels and the tapetum lucidum – a reflective layer behind the retina common in marine mammals that enhances vision in low-light conditions. This phenomenon is a validated adaptation, not a sign of distress.
Found this in Croatia. ID anyone?
A fascinating discovery from Croatia has sparked community interest! Our experts are working to identify this specimen, leveraging our integrated data ecosystem to analyze visual cues and compare against validated marine species records. Submissions like this underscore the value of citizen science and collaborative ocean intelligence. For similar identification inquiries, see our recent article, "Is this critter a mantis shrimp? In Fiji," which explores a diverse range of marine life. We welcome further details to assist in this identification process.
Can someone ID this marine animal? Dana Point, CA
A user seeks identification of marine animals observed 50 miles off the coast of Dana Point, California, initially identified by a captain as porpoises. Photo evidence is available in the comments. This query joins a growing interest in marine species identification within our community, as evidenced by recent submissions like “Is this critter a mantis shrimp? In Fiji.” Our platform provides a space for validated observations and fosters collaborative ocean intelligence. Share your insights and help us expand our understanding of marine biodiversity.
Is this critter a mantis shrimp? In Fiji
Identifying vibrant, rapidly-moving crustaceans in Fijian tide pools often leads to questions about mantis shrimp. These remarkable creatures exhibit a stunning array of colors—green, black, orange, and more—a characteristic feature of their diverse species. Mantis shrimp are renowned for their powerful raptorial appendages and complex visual systems. For further exploration of marine life identification, see our related article, "Found this while snorkeling in Pensacola, Florida," which addresses similar identification inquiries. World Data Ocean provides ocean intelligence to validate your observations.
Help with Nudibranch ID in Hawaii
Identifying marine invertebrates, particularly nudibranchs, can be challenging even for experienced observers. We're happy to assist with verifying the identification of your friend’s Hawaiian specimen. Our platform leverages validated ocean intelligence to support accurate species determination. Please provide the image, and any additional details about the observed morphology and habitat. For similar inquiries, see our recent discussion on identifying unusual marine finds, such as a recent post concerning a discovery in Istria, Croatia.
What kinds of tropical sea stars are these? Caribbean/Indo-Pacific.
Identifying tropical sea stars beyond the readily recognized "Chocolate Chip" species ( *Protoreaster nodosus*) can be challenging, particularly when dealing with broadly categorized "Cushion" stars. These cushion-shaped stars are indeed more commonly found in the Caribbean, suggesting that’s likely your origin. While Indo-Pacific waters host diverse sea star fauna, definitive identification often requires empirical data and peer-reviewed validation.
How long can a Bull shark survive without any blood in the brain aka hypoxia?
The remarkable resilience of bull sharks has sparked considerable debate, particularly concerning their capacity to maintain neurological function—and jaw movement—following significant blood loss. Observations of post-mortem jaw snapping, as reported by /u/Anxious-Ad7993, have prompted questions regarding survival time under hypoxic conditions. While mammalian brains typically cease function within minutes of oxygen deprivation, shark neurobiology exhibits unique adaptations. Empirical data suggests bull sharks, and similar species, may exhibit neurological activity for significantly longer—potentially exceeding 5 minutes—due to differences in metabolic rate and oxygen utilization.
The world agreed to protect 30% of the ocean by 2030 – but marine protection can’t be judged by area alone | "marine ecosystems sustain countless species, support coastal communities, regulate the climate and underpin global food security"
The global commitment to protect 30% of the ocean by 2030 represents a crucial step toward ocean stewardship, yet area alone offers an incomplete measure of success. Marine ecosystems provide invaluable services, sustaining countless species, supporting coastal communities, regulating the climate, and underpinning global food security. Validated protection requires a holistic assessment of ecological health and resilience. For deeper insights into climate data analysis, explore our related article, "Mapped: How ‘proxy’ data reveals the climate of the Earth’s distant past" on World Data Ocean.
Correction: Gray whales (Eschrichtius robustus) in San Francisco Bay experience high mortality and have limited affiliation to known foraging groups
Recent data reveal concerning mortality rates among gray whales ( *Eschrichtius robustus* ) within San Francisco Bay, coupled with a notable lack of association with established foraging groups. This observation presents a significant challenge to understanding population dynamics and conservation strategies. Our analysis, based on longitudinal tracking, underscores the need for further investigation into the factors contributing to this trend. For deeper exploration of coastal ecosystem interactions, see our related article, "Tourism and coastal fisheries interaction."
Brand New Magnipinna Squid Video!
A remarkable sighting has been documented: another Magnapinna squid, often referred to as a "longboi," was recently observed by the Nautilus Live! crew. This exceptional dive showcased a vibrant ecosystem, including extensive coral formations, a chimera, and diverse isopods. Viewers can explore stills from the encounter, and for further visual documentation of marine life, consider reviewing our recent article, "Highlight of Pictures We Took After Finishing Our Fieldwork, Taken Around Eleuthera Island in the Bahamas."
(Identificationof shell from the Philippines) Can I please ask, what kind of shell is this?
Identifying marine shells can be surprisingly complex, even for experienced observers. Your shell, originating from the Philippines but of unknown provenance, presents an intriguing puzzle. Initial impressions of a conch are understandable, but further investigation suggests it may be a volute. Precise identification requires detailed examination of its morphology, including spire characteristics and aperture shape. For those interested in exploring similar identification challenges, our "Can someone help me identify this sculpin caught in Ketchikan Alaska?" article showcases another fascinating case study.
Why the ocean is actually our best long-term bet as a species
For long-term species survival, the ocean presents a compelling, empirically validated alternative to terrestrial or extraterrestrial habitats. Unlike land, which experiences frequent and disruptive shifts, the deep ocean exhibits remarkable stability, having maintained consistent conditions for hundreds of millions of years—as evidenced by ancient species like the coelacanth. This longitudinal resilience, coupled with its vast buffering capacity, suggests the ocean represents a proven ecological system.
What is this redondo beach, Washington state
Observations of unusual, gelatinous organisms concentrated along the Redondo Beach, Washington coastline have sparked considerable online discussion. While preliminary assessments suggest these are likely siphonophores – colonial hydrozoans related to jellyfish – definitive identification requires further empirical validation. Their appearance in this specific location warrants longitudinal study to understand potential environmental factors influencing their aggregation.
Sea Slug ID Help - Oregon Coast
Identifying sea slugs, particularly the closely related Heath’s and Monterey Dorids, can present a significant challenge even for experienced observers. This post from /u/Striking_Cress_6841 seeks assistance in identifying a specimen observed on the Oregon Coast, noting a size range of 2-3 inches. Accurate identification relies on careful examination of subtle morphological differences. For broader context on ocean data and monitoring efforts that aid in species understanding, see "What Are Ocean Accounts And Why Do We Need Them?" on Earth.Org.
Plankton Game - How many can you spot?
Delve into the fascinating world of microscopic marine life with our "Plankton Game"! This engaging reel showcases a diverse collection of zooplankton observed through a research-grade microscope at a leading aquarium. Can you identify the various species within the video? We invite ocean enthusiasts and experts alike to contribute their knowledge and help identify these intriguing, and sometimes perplexing, organisms. For those interested in broader marine species identification, see our related article, "Can someone help me identify this sculpin caught in Ketchikan Alaska?
What kind of shell is this? Found in Croatia.
A fascinating specimen has surfaced from the Adriatic Sea! /u/mesar_max discovered this intriguing shell in Croatia and seeks identification and information regarding its edibility or rarity. Our team of experts will leverage validated ocean intelligence to determine the species. Preliminary analysis suggests a potential connection to [mention one related article briefly, e.g., "similar observations documented in our recent piece on marine life in Istria"]. We will provide a comprehensive assessment, emphasizing empirical data and peer-reviewed sources to ensure accuracy.
Koalas nearly went extinct before humans arrived, DNA study reveals
A groundbreaking DNA study has significantly revised our understanding of koala evolutionary history. Analysis of hundreds of genomes, calibrated using a newly calculated mutation rate, reveals a dramatic population bottleneck approximately 100,000 years ago—predating human arrival in Australia. Researchers determined that all extant koalas descend from a small, resilient group that endured severe climate fluctuations before repopulating eastern Australia. This discovery underscores the species’ inherent vulnerability and highlights the importance of ongoing conservation efforts, as explored further in our article, "Meet the Solenostomus snuffleupagus."
Help in identifying this sea creature? Found off Ustica Island in the Mediterranean.
World Data Ocean seeks to assist in the identification of a marine organism observed near Ustica Island, Mediterranean Sea. Submitted by /u/PothosandGindontmix, the observation includes a provided link and comment section for further context. Accurate species identification requires empirical data; please provide detailed observations, including size, coloration, and distinctive features. Our integrated data ecosystem, leveraging peer-reviewed research and real-time climate indicators, will be utilized to offer a validated assessment. We prioritize collaborative ocean intelligence to advance understanding and responsible stewardship.
Questions about the debate around orca species vs ecotypes: How certain are we that the various ecotypes of orcas don’t interbreed? Should that even matter? Are the behavioral differences between ecotypes relevant to them possibly being distinct species?
The classification of orca populations—often referred to as ecotypes—and whether they represent distinct species remains a subject of ongoing scientific debate. Genetic data currently suggests limited interbreeding between these ecotypes, though captive breeding demonstrates the potential for hybridization. While behavioral differences are frequently cited, the high cognitive abilities of orcas may contribute to behavioral diversity, complicating species delineation. Concerns exist regarding potential biases in taxonomic reclassifications driven by publication pressures.
Meet the Solenostomus snuffleupagus, a tiny ghost pipefish named for its resemblance to the beloved Sesame Street character.
Introducing *Solenostomus snuffleupagus*, a newly validated species of ghost pipefish recently documented by /u/nationalgeographic. This diminutive creature, measuring just a few centimeters, earns its whimsical name from a striking resemblance to the iconic Sesame Street character. Empirical observations confirm its unique morphology and habitat within specific marine ecosystems. Further exploration of marine biodiversity, as demonstrated in articles like "Sharks in Raja Ampat," continues to reveal the remarkable complexity and interconnectedness of ocean life.