Animalscaretips
- Is a whale a cetacean?
- How did the blue whale get its scientific name?
- Is an Orca a whale or a dolphin?
- Who is big megalodon or blue whale?
- What three groups are considered cetaceans?
- Is a shark a cetacean?
- Do dolphins have pubic hair?
- Are blue whales bigger than dinosaurs?
- Who eats killer whales?
- Is a whale shark a whale or a shark?
- Why is it called a killer whale?
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.
How did the blue whale get its scientific name?
Blue whales get their name from their gray to blue coloration. If conditions are right, diatoms (planktonic photosynthesizers) will build up on their stomachs and make their undersides look yellowish. They are much longer than they are wide and have a small dorsal fin.
Is an Orca a whale or a dolphin?
While orcas are members of the marine dolphin family Delphinidae, their overall size is what sets them apart from others in their suborder. Today, if a dolphin reaches a size of more than 30 feet long, it may be referred to by some as a whale, but the rules of taxonomy still classify the orca as a dolphin.
Who is big megalodon or blue whale?
Megalodon vs.
When it comes to size, the blue whale dwarfs even the largest megalodon estimates. It's believed blue whales can reach a maximum length of 110 feet (34 meters) and weigh up to 200 tons (400,000 pounds!). That's more than twice the size of even the largest megalodon size estimates.
What three groups are considered cetaceans?
Whales, dolphins, and porpoises together constitute the Cetacea (English: cetaceans). All modern Cetacea live in water and cannot survive out of the water. In spite of this, cetaceans are mammals.
Is a shark a 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.
Do dolphins have pubic hair?
Unlike most mammals, dolphins do not have hair, except for a few hairs around the tip of their rostrum (beak) which they lose shortly before or after birth. The only exception to this is the Boto river dolphin, which has persistent small hairs on the rostrum.
Are blue whales bigger than dinosaurs?
Blue whales are the largest animals that have ever lived—they're even bigger than dinosaurs! Blue whales reach 34 meters (110 feet) long and weigh as much as 172,365 kilograms (190 tons). ... Like all dinosaurs, Argentinosaurus was a reptile. Today, the world's largest reptile is the saltwater crocodile.
Who eats killer whales?
Killer whales are apex predators, which means they have no natural predators. They hunt in packs, much like wolves, which are also at the top of their food chain.
Is a whale shark a whale or a shark?
They're not whales, but the world's largest fish
But despite their size, whale sharks are often referred to as "gentle giants".
Why is it called a killer whale?
Orcas were given the name 'killer whale' by ancient sailors' observations of groups of orcas hunting and preying on larger whale species. They called orcas asesina ballenas, or 'whale killer' – a term that was eventually flipped around to the easier 'killer whale'.
