It turns out the key to a male crocodile's heart is a sonic boom. Crocodiles at an Israeli farm have begun making mating calls in response to sonic booms created by air force planes breaking the sound barrier. From the article: "The males have already begun their mating calls, described by the newspaper as 'the sound a vehicle breaking,' normally reserved for the crocodiles' spring mating season, Israeli newspaper Maariv reported. David Golan of the Hamat Gadar crocodile farm in the Golan Heights, believes the reptiles were responding to the sonic booms, wrongly believing they were the calls of rival males encroaching on their territory

nibbles2004 writes "An article in the Guardian newspaper shows how parasitic fungi evolved the ability to control ants they infect, ultimately leading the ant to its death. The fungus controls the ant's movements to a suitable leaf and causes the ant to grip onto the leaf's central stem, allowing the fungus to spore, which will allow more ants to become infected."