Barks in the night lead to the discovery of new species

The raucous calls of tree hyraxes—small, herbivorous mammals—reverberate through the night in the forests of West and Central Africa, but their sound differs depending on the location.

Looking for the next American hyrax?

If popular karaoke bars and the long audition lines for American Idol demonstrate anything, it's that people like to express themselves through song — and the bigger the audience, the better. Now researchers at Tel Aviv ...