File:Sperm whales.jpg
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Sperm Whale Cow and Calf
(Physeter macrocephalus)
These whales were given their common name because of a waxy liquid called "spermaceti" located in their head (their name has nothing to do with sperm or spermatozoa).
Sperm Whale Facts
- Sperm whales live at least 60-70 years.
- Sperm whales form “nursery schools” that contain between 20 and 30 whales; females, calves, and juveniles (male and female).
- The brain of a sperm whale is the largest of any animal, about 9 kilograms.
- Adult males (bulls) reach more than 15 metres (50 feet) in length and weigh 54,400 kilograms (120,000 pounds, 60 tons).
- Adult females (cows) reach more than 11 metres (36 feet) and weigh 25,000 kilograms (55,000 pounds, 27.5 tons).
- Newborn (calves) are about 4 metres (13 feet) long and weigh only 1,000 kilograms (2,200 pounds, 1.1 tons).
- a calf is born to a female only every 4 to 6 years.
- calves stay with the mother for between 1 and 2 years.
(Data: NOAA USA PDF)
- Links: K12 Animal Development Times
Copyright
http://en.wikipedia.org/wiki/File:Mother_and_baby_sperm_whale.jpg
http://www.flickr.com/photos/barathieu/7277953560/
Image: Gabriel Barathieu
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| current | 16:32, 25 March 2013 | | 1,000 × 562 (59 KB) | Z8600021 (talk | contribs) | ==Sperm Whale Cow and Calf== ==Copyright== http://en.wikipedia.org/wiki/File:Mother_and_baby_sperm_whale.jpg http://www.flickr.com/photos/barathieu/7277953560/ Image: Gabriel Barathieu This file is licensed under the Creative Commons Attribution-... |
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