The pinniped ear is adapted for hearing underwater, where it can hear sound frequencies of up to 70,000 Hz. In air, hearing is somewhat reduced in pinnipeds compared to many terrestrial mammals. While their airborne hearing sensitivity is generally weaker than humans', they still have a wide frequency range. [61]

A member of this group is called a pinniped or a seal. [ a ] They are widespread throughout the ocean and some larger lakes, primarily in colder waters. Pinnipeds range in size from the 1.1 m (3 ft 7 in) and 50 kg (110 lb) Baikal seal to the 6 m (20 ft) and 3,700 kg (8,200 lb) male southern elephant seal , which is also the largest member of ...

The pinniped’s ancestors were likely drawn to the ocean due to its abundance of food and over time they evolved to life in the water. Pinnipeds evolved from the ancestors of the musteloids which include everything from the red panda to skunks, badgers weasels, and raccoons.

2025年1月17日 · Pinniped, any of a group of 34 species of aquatic fin-footed mammals comprising seals, sea lions, and the walrus. Pinnipeds live only in rich marine environments and a few inland or tropical freshwater systems.

The word "pinniped" means fin- or flipper-footed and refers to the marine mammals that have front and rear flippers. This group includes seals, sea lions and walruses -- animals that live in the ocean but are able to come on land for long periods of time.

The pinnipeds are a group of 33 species of aquatic fin-footed mammals composing three families: the true seals (family Phocidae), the fur seals and sea lions (family Otariidae), and the walrus (family Odobenidae). Pinnipeds live only in rich marine environments and a few inland or tropical

Unlike cetaceans, pinnipeds have their noses on their faces, and each nostril of the nose closes when the pinniped goes underwater. Like cetaceans, pinnipeds have a thick layer of blubber (fat) just under their skin : this blubber keeps them warm in cold waters and keeps them fed during times when food is not easily found.

While there are many differences among the species, all seals have feet shaped like fins. In fact, the word pinniped means "fin-footed" in Latin.

What is a Pinniped? The word “pinniped” means fin- or flipper-footed and refers to the marine mammals that have front and rear flippers. Pinnipeds are a diverse group of marine mammals that includes seals , walruses and sea lions.

The term “pinniped” is derived from the Latin words “pinna,” meaning fin or feather, and “ped,” meaning foot. This name perfectly encapsulates their unique adaptations that allow them to thrive in both marine and terrestrial environments.