Tuesday, December 10, 2013

Crocodilians use tools for hunting

Crocodilians use tools for hunting
V. Dinets, J.C. Brueggen, J.D. Brueggen
Ethology Ecology & Evolution

Abstract

Using objects as hunting lures is very rare in nature, having been observed in just a handful of species. We report the use of twigs and sticks as bird lures by two crocodilian species. At least one of them uses this method predominantly during the nest-building season of its prey. This is the first known case of a predator not just using objects as lures, but also taking into account the seasonality of prey behavior. It provides a surprising insight into previously unrecognized complexity of archosaurian behavior.

It wasn't so very long ago that we believed that no animals other than white men had souls, minds, or inherent rights. But things change. A woman has just been named CEO of General Motors and on Monday, December 2, 2013, a writ of habeas corpus was filed in a court in New York on behalf of Tommy, a 26-year-old chimpanzee.

To those who take the time to notice, it appears that there are thinking beings all around us, beings with complex minds and interests. Their interests are the subject of increasing concern, discussion, action, and demand.

The fact that there are those among us who are concerned, won't let the conversation fade away, keep advocating for those who have no voice, and keep making demands on their behalf, is very hopeful.

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