A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale). Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).

The common dolphin (Delphinus delphis) is the most abundant cetacean in the world, with a global population of about six million. [3] Despite this fact and its vernacular name, the common dolphin is not thought of as the archetypal dolphin, with that distinction belonging to the bottlenose dolphin due to its popular appearances in aquaria and ...

Dolphins are from 1.5 metres (4.9 ft) to 4 metres (13 ft) long, but the largest dolphin, the killer whale (or orca), can be up to 8 metres (26 ft) long. All dolphins live in groups called "pods". They are social animals at all stages of their life.

The bottlenose dolphin is a toothed whale in the genus Tursiops. They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. [3]

2019年12月13日 · There are dolphins in every ocean on Earth, and there are freshwater species of dolphins that inhabit rivers in South Asian and South American. The largest dolphin species (the orca) grows to more than 30 feet long while the …

2025年1月25日 · Dolphins are swift swimmers; the bottlenose dolphin can attain speeds of nearly 30 km/hr (18.5 mph) in short bursts, and common dolphins are even faster. What are dolphins known for? Dolphins are popularly noted for their grace, …

Dolphins are small-toothed cetaceans easily recognizable by their curved mouths, which give them a permanent “smile.” There are 36 dolphin species, found in every ocean.

Oceanic dolphins are the members of the Delphinidae family, of the order Cetacea. They are aquatic mammals . They are found worldwide, mostly in the shallower seas of the continental shelves.

Dolphins are a diverse group of animals, ranging from the small Māui’s dolphins (1.7 m) to large Orcas (8 m). While most have a general dolphin-shaped body, the shape of the head, pectoral fins, tail flukes and dorsal fin can vary enormously across the different species.

2024年3月9日 · Their agility, intelligence, playfulness and social skills make dolphins one of the most charming inhabitants of the Earth’s waters. But there’s more to this savvy, diverse family of creatures than meets the eye.