If you’ve ever seen a picture or video of sea otters floating on their backs, holding hands as they snooze, you’ve probably thought it’s one of the most adorable things in the animal kingdom.

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Unlike most marine mammals, sea otters are primarily insulated by fur, not blubber. In fact they have the densest fur in the animal kingdom. Sadly that thick, resplendent coat has also given otters ...

Sea otters also have a high metabolism to help keep them warm. However, to maintain their energy, they need to eat around 25%-30% of their body weight, which can take 20%-50% of the day.