Search results
Results From The WOW.Com Content Network
This happened around 34 million years ago in a second cetacean radiation. [47] [48] Modern toothed whales do not rely on their sense of sight, but rather on their sonar to hunt prey. Echolocation also allowed toothed whales to dive deeper in search of food, with light no longer necessary for navigation, which opened up new food sources.
The pygmy right whale shares several characteristics with the right whales, with the exception of having a dorsal fin. Also, pygmy right whales' heads are no more than one quarter the size of their bodies, whereas the right whales' heads are about one-third the size of their bodies. [11] The pygmy right whale is the only extant member of its ...
Brain of the sperm whale, considered the largest brain in the world. Sperm whales have the largest brain mass of any animal on Earth, averaging 8,000 cm 3 (490 in 3) and 7.8 kg (17 lb) in mature males. [24] The brain to body mass ratio in some odontocetes, such as belugas and narwhals, is second only to humans. [25]
Hunting sperm whales required longer whaling voyages, and soon New Bedford and Nantucket whalemen were ranging the globe, cruising "whaling grounds" off of Japan, off the coast of Peru and Ecuador, and along the equatorial regions of the Pacific Ocean. [17] Whale oil was essential for illuminating homes and businesses in the 19th century, and ...
Around 300 pilot whales were stranded at Stanley, Tasmania. [ 37 ] [ 38 ] [ 39 ] The exact number of deaths or whales involved is unclear, with one newspaper reporting at least 245 confirmed deaths, [ 40 ] while another newspaper reported in 1936 that 70 whales escaped during high tide the day after the stranding.
Each year, a number of North Atlantic right whales get formal names. Scientists just released this year's list. What goes into naming a whale?
"Whale pump" – the role played by whales in recycling ocean nutrients. [79] A 2010 study considered whales to be a positive influence to the productivity of ocean fisheries, in what has been termed a "whale pump." Whales carry nutrients such as nitrogen from the depths back to the surface.
Spade-toothed whales are the world’s rarest, with no live sightings ever recorded. No one knows how many there are, what they eat, or even where they live in the vast expanse of the southern ...