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Tough Life
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FRom Wikipedia:
Koalas are broadly similar in appearance to the wombat (their closest living relative), but have a thicker, softer coat, much larger ears, and longer limbs, which are equipped with large, sharp claws to assist with climbing. Weight varies from about 14 kg for a large, southern male, to about 5 kg for a small northern female. They are generally silent, but male koalas have a very loud advertising call (a nasal snort that human children delight in imitating) that can be heard from almost a kilometre away during the breeding season. There is little reliable information about the lifespan of koalas. However, in captivity they have been observed to reach the age of 15 years.
Because of the low nutritional value of the koalas' diet, they have saved energy by evolving unusually small brains. 40% of the cranial cavity is filled with fluid, while the brain itself is;
"like a pair of shrivelled walnut halves on top of the brain stem, in contact neither with each other nor the bones of the skull. It is the only animal on Earth with such a strangely reduced brain". (Flannery, p. 86) |
dew77 has marked this note useful
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- dew77
![Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4635 W: 248 N: 4025]](http://i1.treknature.com/misc/g-g-g.gif)
(13237) - [2006-01-09 5:19]
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Hello Thomas!
Funny capture.POV,framing,lighting and pose of koala are wonderful.TFS...:-)
![Gold Star Critiquer/Gold Note Writer [C: 76 W: 0 N: 287]](http://i1.treknature.com/misc/g-n-g.gif){kind=small}
