How many Delphinidae are there?

How many Delphinidae are there?

classification. Family Delphinidae (oceanic, or marine, dolphins)37 species in 17 genera found worldwide, some of which occasionally venture into fresh water.

How many teeth do Ganges river dolphins have?

Some Ganges River dolphins may have a pinkish cast to the belly. The 26 to 39 upper teeth and 26 to 35 lower teeth are curved. The anterior teeth are longer and extend outside of the closed mouth, especially in younger animals, whose teeth have not yet become worn.

Are porpoises whales?

While dolphins and porpoises belong to separate families, with differences in looks and genetics from whales, all dolphins and porpoises can be considered whales taxonomically, but not all whales are dolphins or porpoises.

Are cetaceans carnivores?

All cetaceans are carnivores and do not consume plants or algae as food. The large baleen whales eat schooling organisms that range in length from minute drifting mollusks, copepods (1 cm or less), krill (1–5 cm), and small fish and squid up to about 40 cm.

What type of dolphin was Flipper?

Bottlenose Dolphin
Bottlenose Dolphin (Tursiops truncates) Perhaps the most well-known and well-studied dolphin species in the world, the bottlenose dolphin is likely what comes to mind when you hear the world “dolphin.” (Indeed, popular culture’s most famous dolphin, Flipper, was a bottlenose dolphin.)

How many Ganges river dolphins are left?

There are approximately 2,500-3,000 Ganges river dolphins left living in the wild. This means that the species is vulnerable and is categorized as endangered. More about them: The Ganges river dolphin lives in the Ganges– Brahmaputra–Meghna and Sangu–Karnaphuli river systems in India, Nepal, and Bangladesh.

Is an orca a porpoise?

While “dolphin” and “porpoise” historically were interchangeable terms, modern marine biologists consider only six species porpoises. All other delphinids, including orcas, are classified as dolphins.

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.

Are hippos cetaceans?

Analysis of the previously unknown, long-extinct animal also confirms that cetaceans — the group to which whales, dolphins and porpoises belong — are in fact the hippo’s closest living cousins.

Is Flipper a true story?

Flipper was actually Mitzie (1958–1972), a female trained at the Santini Porpoise School (later the Dolphin Research Center) by Milton and Virginia Santini, who are credited in the film. Mitzie is buried at the Dolphin Research Center, where her grave is the first stop on the center’s public tours.

How many dolphins died making Flipper?

Bebe, the last of seven bottlenose dolphins (left) that starred in the Flipper television series, has died. She was 40. The dolphin died “of old age” last week at the Miami Seaquarium where she was born in 1956; Atlantic bottlenose dolphins typically live 25 to 35 years.

Will crocodiles eat dolphins?

Originally Answered: Do Crocodiles predate on freshwater dolphins? they can..! but the interaction has been seldom seen in the wild habitats. dolphins may avoid areas with crocs for the specific reason.

Why are Ganges dolphins blind?

The Ganges river dolphin can only live in freshwater and is essentially blind. They hunt by emitting ultrasonic sounds, which bounces off of fish and other prey, enabling them to “see” an image in their mind.