Earth & Sky

Scientists have discovered a type of tiny nematode parasite that disguises an ant as a fruit. These nematodes have managed to trick birds into eating their hosts, said tropical insect ecologist Steve Yanoviak.

Does being a dog mean never having to say you’re sorry? Not really, according to biologist Marc Bekoff of the University of Colorado. Bekoff talked to EarthSky about how and why dogs learn to play fair.

Experts say they are seeing rapid declines in the number of butterfly species – with no obvious explanation. EarthSky spoke to Arthur Shapiro at the University of California about his study of butterfly populations.

The Amphibian Ark is a global effort to collect amphibians in zoos, aquariums, and elsewhere. EarthSky asks: why amphibians?

Listen to anthropologist Jim Moore, on what’s so important about a Tanzania study that provides the first evidence that chimps use tools to forage for tubers.

Bruce Collette of Washington, DC is working to assign barcodes to all 30,000 fish species. But unlike barcodes at the grocery store, these won’t give you a price. These DNA barcodes – small, unique sections of genetic code – can be used to differentiate between species.