The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do. A new study suggests gray seals (Halichoerus grypus) can sense the level of oxygen in ...

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Fur seals may look like they’re simply resting after exhausting hunting trips at sea, but their bodies are secretly working ...

A study found remoras, known as suckerfish, were using a less-than-comfortable place to hitch a ride: the rear ends of manta ...