Animal behaviour Archive

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‘Evolution in real time’: silent crickets still singing for a mate | Science

Scientists are fascinated that Hawaiian crickets still perform their vigorous mating call, despite having evolved to lose their song to avoid a deadly new parasite Scientists are studying the crickets to see if their silent singing fulfils another undetected function. Photograph: ImageBroker/Rex/ShutterstockMale field crickets traditionally attract a

Orcas can imitate human speech, research reveals | Science

Killer whales able to copy words such as “hello” and “bye bye” as well as sounds from other orcas, study shows High-pitched, eerie and yet distinct, the sound of a voice calling the name “Amy” is unmistakable. But this isn’t a human cry – it’s the voice

Orange cave crocodiles may be mutating into new species | Environment

In 2008 an archaeologist discovered crocodiles living in remote caves in Gabon. Now, genetics hint that these weird cave crocodilians may be in the process of evolving into a new species. Bats greet visitors to the Abanda caves – and supply crocodiles with a steady diet. Illustration: