Bat-eating spiders are everywhere, study finds

 

Eighty-eight percent of the reported cases of bat catches were due to

web-building spiders, with giant tropical orb-weaving spiders with a

leg-span of 4 to 6 inches seen catching bats in huge, strong orb-webs up

to 5 feet wide.

Read more: http://www.foxnews.com/science/2013/03/18/bat-eating-spiders-are-everywhere/#ixzz2NwgxK7Tr

It looks like spiders are getting bigger now and webs are getting bigger too.This is not good becuse it changes the ecosystem if spiders become more of predator .

 

 

It looks like spiders are getting bigger now and webs are getting bigger too.This is not good becuse it changes the ecosystem if spiders become more of predator .

 

I'm not sure it can be asserted that this is new behavior for the spiders. More like it is newly discovered behavior of spiders by humans..

And also im not sure if it can be asserted it would be a bad thing for the ecosystem either. Who are we to question new species of animals? For all we know that spider will be needed in the next hundred years for some purpose (in the food chain/ecosystem ) and that's why it has just now developed.