Sea Otters vs. River Otters

1️⃣ Habitat Sea Otter: Lives in cold coastal waters. They spend almost their entire lives in the ocean, even sleeping and giving birth in the water. River Otter: Lives in freshwater areas like rivers and lakes. They can move freely between land and water. 2️⃣ Appearance and Size Sea Otter: Larger in size, reaching 130-150 cm in length and weighing about 30-50 kg. They have fluffy, off-white fur on their faces. River Otter: Smaller in size, about 50-80 cm long. They have thick, long tails, and their facial color is similar to their body. 3️⃣ Unique Behaviors Sea Otter: Likes to float on its back in the water. They hold hands while sleeping and use their chest pouches to store rocks for cracking open shellfish. River Otter: Agile and nimble. They defecate in designated spots. They can also be found in Kinmen, Taiwan.