May 23, 2011

The Octopus -- Very Flexible Indeed~

Well, it is very obvious that an octopus, jellyfish, or sponge has not skeleton, being natural invertebrates. But you'd figure every animal has a limit in flexibility, right?
Wrong.
And octopus has no limit in flexibility, and are commonly seen escaping from bottles with ease. They are also very smart, changing color in seconds to match it's backdrop or to use one tentacle to reach something in a small space. Well it turns out that one tentacle can also bend wherever it needs to in order to reach. Tests show that an octopus can manipulate one tentacle using complex movements and motions, while being able to maintain it without injury. Now if a human tried that, I bet we'd all be in a lot of pain.
An octopus also has unlimited control over its body. With no bones, you would think it has control over few parts as the others just follow stuff. It turns out it has control over every part, also shown in the tests.
So we can all learn from these creatures and admire their skill.
Just don't try this at home.

www.sciencedaily.com/releases/2011/05/110518105513.htm

May 17, 2011

Tarantulas Have Silk In Their Feet...?

Yes, it's true. These horrifying spiders can actually do this. Most spiders catch themselves with webs, or can just withstand the impact. And Jumping Spiders hop from place to place. But when one of these furry frights falls it releases silk from its feet to catch itself. These threads are indistinguishable by the naked eye, but under a microscope you can see small bits of them. Claire Rind of the University of Newcastle has been researching this discovery, and predicts that these spiders could be a missing link connecting modern day web-spinning spiders and extinct silk-spinning spiders. So what do we know now? That you can probably expect to own a sweater made of spider silk in the future. Will they still be gross to some people? Yes. Will they disappear? Maybe.

http://www.sciencedaily.com/releases/2011/05/110516075927.htm