awwww-cute: Seal bones don’t form until they reach maturity after their third winter. Until then, pups are very flexible, and internally have a system of blubber-filled balloons instead of bones (Source: http://ift.tt/1DAvWLF)

awwww-cute: Seal bones don’t form until they reach maturity after their third winter. Until then, pups are very flexible, and internally have a system of blubber-filled balloons instead of bones (Source: http://ift.tt/1DAvWLF)

tags: Carry-on-my-wayward-blog,

from: https://they-grew-up-heroess.tumblr.com/post/117642388685