Is a whale a cetacean?

Is a whale a cetacean?

Cetaceans (order Cetacea) are an entirely aquatic order of mammals comprising the whales, the dolphins, and the porpoises. The ancient Greeks recognized that cetaceans breathe air, give birth to live young, produce milk, and have hair—all features of mammals.

Which whales are carnivores?

Killer whales are toothed whales and top carnivores in their food chain. Sometimes referred to as “sea-wolves”, they frequently hunt in packs or “pods”. Their tastes are wide ranging from krill and fish to penguins, seals and even much larger baleen whales.

Is Cetacea and Sirenia Mcq absent?

Sweat glands are absent in cetacea and sirenia.

Are sharks cetacean?

Sharks are part of the elasmobranch family, which includes sharks, rays, skates, and sawfish, while dolphins are part of the cetacean family, which includes toothed and baleen whales, as well as porpoises.

Is whale a fish or mammal?

Whales and porpoises are also mammals. There are 75 species of dolphins, whales, and porpoises living in the ocean. They are the only mammals, other than manatees, that spend their entire lives in the water.

What is the rarest whale?

spade-toothed whale
Based on its scarcity, only two intact animals having been seen in the last 140 years, the spade-toothed whale is the world’s rarest whale.

Can whales eat humans?

Despite occasional reports of whales scooping people into their mouths, it’s incredibly rare—and for all but one species, swallowing a human is physically impossible. On Friday, a lobster diver made headlines when he described miraculously surviving being “swallowed” by a humpback whale off Cape Cod, Massachusetts.

Does the blue whale have hair?

Believe it or not, whales do have hair, although it’s only visible in some species. The golfball-sized lumps you see on a humpback’s head each house a hair follicle. Fin, sei, right and bowhead whales also have hair follicles. There can be 30-100 of these follicles, depending on the species.

Do whales lay eggs?

Do whales lay eggs? The answer is no. Because whales are marine mammals, the females carry the offspring in their wombs and have live births! However, since whales are fully aquatic mammals, how whales give births is much different than the births of terrestrial and semi-aquatic animals.

Why are sharks scared of dolphins?

When they see an aggressive shark, they immediately attack it with the whole pod. This is why sharks avoid pods with many dolphins. The dolphins will slam their snouts into the soft stomach of the shark which leads to serious internal trauma. They also use their snouts to hit the gills of the shark.