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A common bottlenose dolphin (Tursiops truncatus). 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).
Humans killed per year Animal Humans killed per year Animal Humans killed per year 1 Mosquitoes: 1,000,000 [a] Mosquitoes 750,000 Mosquitoes 725,000 2 Humans 475,000 Humans (homicide) 437,000 Snakes 50,000 3 Snakes: 50,000 Snakes 100,000 Dogs 25,000 4 Dogs: 25,000 [b] Dogs 35,000 Tsetse flies 10,000 5 Tsetse flies: 10,000 [c] Freshwater snails ...
They are recorded to prey on other cetacean species, usually smaller dolphins and porpoises such as common dolphins, bottlenose dolphins, Pacific white-sided dolphins, dusky dolphins, harbour porpoises and Dall's porpoises. [83] [40] While hunting these species, orcas usually have to chase them to exhaustion. For highly social species, orca ...
Taylor Nicioli, CNN. October 17, 2024 at 5:05 PM. Scientists found microplastics in the exhaled breath of 11 dolphins, according to a new study. A wild bottlenose dolphin receives a health ...
Dusky dolphins measure about 7 feet (2 meters) long and weigh up to 187 pounds (85 kilograms). By comparison, an orca measures up to 32 feet (10 meters) long and can weigh as much as 11 tons (10 ...
Researchers found an increase in common dolphin sightings in the English Channel and Hebrides, and a decline in white-beaked dolphins in the Hebrides.
Common bottlenose dolphins have a grey coloring, a short beak, a single blowhole, and a hooked dorsal fin. [13] The bottlenose is between 2 and 4 m (6.6 and 13.1 ft) long, and weigh between 150 and 650 kg (330 and 1,430 lb). [14] Males are generally larger and heavier than females.
Irrawaddy dolphins are more susceptible to human conflict than most other dolphins that live farther out in the ocean. Drowning in gillnets is the main threat to them throughout their range. Between 1995 and 2001, 38 deaths were reported and 74% died as a result of entanglement in gillnets with large mesh sizes. [33]