海豚也会利用工具捕鱼
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[p=30, 2, left]我们都知道海豚是聪明的动物，近日Murdoch 大学的研究人员发现：海豚还会利用海螺来捕鱼。不仅如此，它们还会交流传播这种方法，现在利用海螺捕鱼的方法，正在澳大利亚西部的海豚族群中传播。[/p][p=30, 2, left][color=#2854BB]研究人员说[/color]，第一次发现海豚有这种行为是在2007年，当时他们发现一些海豚会叼着一个海螺在水里游玩。才开始研究人员以为只是一种玩具，后来发现它是一种捕鱼工具。[/p][p=30, 2, left]海豚会将海螺放在水下，一些小鱼便将此作为庇护所钻进去躲起来，接着海豚便叼起海螺，就好似渔夫收网一样，收获一海螺的小鱼。[/p][/color] [b]回复 [url=http://bbs.tingroom.com/redirect.php?goto=findpost&pid=442333&ptid=209714]1#[/url] [i]kobe[/i] [/b]
[color=#333333][font=Arial, sans-serif][size=16px][font=Georgia, Times, serif][size=15px]Dolphins in one western Australian population have been observed holding a large conch shell in their beaks and using it to shake a fish into their mouths — and the behavior may be spreading.[/size][/font][p=30, 2, left]Researchers from Murdoch University in Perth were not quite sure what they were seeing when they first photographed the activity, in 2007, in which dolphins would shake conch shells at the surface of the ocean.[/p][p=30, 2, left]"It's a fleeting glimpse — you look at it and think, that's kind of weird," said Simon Allen, a researcher at the university's Cetacean Research Unit.[/p][p=30, 2, left]"Maybe they're playing, maybe they're socializing, maybe males are presenting a gift to a female or something like that, maybe the animals are actually eating the animal inside," he added.[/p][p=30, 2, left]But researchers were more intrigued when they studied the photos and found the back of a fish hanging out of the shell, realizing that the shaking drained the water out of the shells and caused the fish that was sheltering inside to fall into the dolphins' mouths.[/p][p=30, 2, left]A search through records for dolphins in the eastern part of Shark Bay, a population that has been studied for nearly 30 years, found roughly half a dozen sightings of similar behavior over some two decades.[/p][p=30, 2, left][b]'Tantalizing possibility'
[/b]Then researchers saw it at least seven times during the four-month research period starting this May, Allen said.[/p][/size][/font][/color] 以上是原文... 谢谢 科比 so clever
i once heared that Dolphins' brain equal to 4 years old children'
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