Lions are famous for a roar that can rattle windows and carry across the savanna, yet researchers now say the big cats have been hiding a vocal trick no one had clearly documented before. By listening ...

Two film technicians with Metro-Goldwyn-Mayer get ready to record the roar of Jackie, the second ‘Leo the Lion,’ in 1928. His trademark roar appeared at the start of all MGM movies until 1956. Parrish ...

The new passive method will enable more accessible and reliable acoustic monitoring compared to traditional monitoring methods, such as camera traps or surveys of tracks.

What are Africa’s big cats saying? Discover the meaning behind their roars, saws and chirps. Lions roar, leopards saw, and cheetahs chirp, but what are they really saying? "Big Cats Unleashed" decodes ...