2025年3月15日 · How big they are: From 5 to 32 feet (1.5 to 10 meters) long, depending on the species Dolphins live in almost every ocean, except most tend to avoid the cold waters in the Arctic and around ...

There are 40 extant species named as dolphins. Dolphins range in size from the 1.7-metre-long (5 ft 7 in) and 50-kilogram (110-pound) Maui's dolphin to the 9.5 m (31 ft) and 10-tonne (11-short-ton) orca. Various species of dolphins exhibit sexual dimorphism where the …

5 天之前 · What are dolphins known for? Dolphins are popularly noted for their grace, intelligence, playfulness, and friendliness to humans.

There are currently 42 species of dolphins and seven species of porpoises. Dolphins are marine mammals. They must surface to breathe air and give birth to live young. A dolphin pregnancy last between nine and 16 months. The mother feeds her offspring on milk. The sons and daughters of resident orcas stay with their maternal family for life.

There are 36 dolphin species, found in every ocean. Most dolphins are marine and live in the ocean or brackish waters along coastlines. There are a few species, however, like the South Asian...

2023年6月29日 · Discover the many different types of dolphins that are alive today. Dolphins are marine mammals belonging to the infraorder Cetacea, which is also home to whales and porpoises. Known for their high intelligence and acrobatic displays, dolphins are among the most familiar and best-loved members of the animal kingdom.

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 …

Dolphins (Delphinidae) are aquatic mammals related to whales and porpoises and famous for their intelligence, apparent compassion and joy. There are almost 40 species of dolphin in 17 genera. Dolphins vary in size from 1.2 metres (4 feet) and 40 kilograms (88 pounds) (Maui’s Dolphin), up to 9.5 metres (30 feet) and 10 tonnes (the Orca).

2024年9月3日 · These various species have developed formidable adaptations in order to live in the world’s waters – some dolphins are slim and pink, others are fat, black and white. Some have as few as four teeth, others have up to 240. Some dolphins are intensely social, whilst others stray from the group.

There are at least 44 species of dolphin known to date. Most species live in the ocean, but a handful live exclusively in rivers! See all of them on our dolphin species list page and learn about some of the most recognizable ones on our species guide! How do dolphins sleep?