2 min readfrom Marine Biology Subreddit

Is the ability for seals to tuck their head in universal, or unique to certain species?

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Dear r/marinebiology experts, I seek your insights on a captivating question regarding seal behavior: Is the ability to tuck their heads in a universal trait among all seals, or is it specific to certain species? My friend has been pondering this for years, particularly in relation to the Hawaiian Monk Seal. While I understand the mechanics involve the seal's long neck and body fat, I wonder if this ability varies across species.
Is the ability for seals to tuck their head in universal, or unique to certain species?
Is the ability for seals to tuck their head in universal, or unique to certain species?

Dear r/marinebiology experts,

I come to you after a lot of searching keywords to no avail in hopes a kind soul might know the answer to a question which has plagued a good friend for years. Is the ability for seals to tuck their heads in something depending on species, or inherent to all of them?

Specifically, we want to know about the Hawaii Monk Seals ability (or lack thereof) for becoming ball-shaped like this:

https://preview.redd.it/zxpqs915rmrg1.png?width=640&format=png&auto=webp&s=48a3ae6ab28a69813387659aa4ceb1f5e35b4f42

https://preview.redd.it/0u5d8b59rmrg1.png?width=1280&format=png&auto=webp&s=1a2db39e9da707c0f370449c7ead522b010cf507

I've gotten far enough in layman's terms to know its due to a somewhat long neck and the fat of the seal making it look all tucked in there - which would suggest any seal might be able to do it! But is there perhaps a kind expert here who can do more than guess work? (Any additional fun hawaii monk seal fun facts are also SO welcome!)

Thanks so much for anyone kind enough to entertain this silly but delightful scientific question! Cheers to all you cool people out there 🌊

submitted by /u/AShrimpFriedThisTank
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