6 agosto 2015
It’s no surprise that some frogs secrete poison from glands in their skin. But researchers have discovered the first two species of frog, both living in Brazil, that are actually venomous. Not only do the frogs produce potent toxins, but they also have a mechanism to deliver those harmful secretions into another animal using bony spines on their heads.img src=»http://feeds.feedburner.com/~r/sciencedaily/~4/R8YnZCgWOZQ» height=»1″ width=»1″ alt=»»/
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R8YnZCgWOZQ/150806133038.htm
