Zdeněk Macháček on Unsplash" />Two lions resting on grass.

When we think of lions, we think of that magnificent roar. A boom of sound that warns predators of their fearsome presence.

However, according to research published in Ecology and Evolution journal last month, lions actually have a second roar that nobody had identified until now, thanks to machine learning.

This exciting discovery means that experts will have a greater understanding of the animal, and how many are in a particular area.

Field recordings from Africa brought this to light

ScienceNews explains: “Using field recordings from Africa and........

© HuffPost