Otters and seals belong to different families, and one difference between them is how each mammal keeps itself warm. Otters have thick fur for keeping themselves warm, while the seals have a deposit of blubber under their skin. Both otters and seals maintain different characteristics. Seals are smooth, greyish-silver, or white, and they possess streamlined bodies that are very sleek looking.
They have whiskers, and they are more significant than otters. Seals are known to lie on beaches and rocky islands, and they are also often found in zoos and aquariums. Otters have small heads and noses, and they have a long body and short legs. They tend to depend more on the land, and they breed and give birth on the land. Otters mate in the sea, and they give birth in the ocean.
They sleep on their backs in the water with their babies. Seals eat fish, and otters are not too fond of fish, as they would instead feast upon invertebrates. Otters have paws, while seals have flippers. Otters have visible ears, while seals do not. The gestation period of a seal is 12 months, while an otter's gestation period is somewhere between 60-90 days.