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THE OTTER: MUSTELIDAE
Figures; 1, 2 & 3- Otter (Mustelidae)
This exhibit is part of an interactive natural history museum. Mostly visited by schools.
These charismatic creatures are known for their incredibly soft yet dense fur and impressive shell opening abilities.
The sea otter is one of the smallest marine mammals on the planet yet still one of the largest members of the animal family Mustelidae. This group also includes other mammals such as weasels and skunks.
They originated from terrestrial weasel-like ancestors then evolved into semi-aquatic hunters, thriving in marine habitats, (as opposed to on land).
Sea otters have developed numerous adaptations which help them to survive in their marine environment. They have long whiskers to help them detect vibrations when they cannot see in the water.
They also have sensitive forepaws with retractable claws which help them to comb through the sea bed in order to find prey.
Otters are excellent hunters that prey on fish crustaceans and other critters. They have an especially technique to opening shellfish, they will find a rock at the sea bed then place in on their chest before smashing the mollusc down until it breaks, then eat what’s inside.
While they sleep, they will attach themselves to kelp so they don’t float away, and will also link each other’s paws to stay together.
Unfortunately, as their fur is so soft they were previously hunted until nearly extinct. But this is not the only problem they face, they are still at risk from pollution and habitat loss.
References:
https://www.nationalgeographic.com/animals/mammals/facts/otters-1
https://academic.oup.com/mbe/article/36/12/2631/5481008
https://www.seaotters.com/sea-otter-natural-history/
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