Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Rhinos are massive, gorgeous, creatures with very few natural ...

The red-billed oxpecker, called “Askari wa kifaru” or the rhino's guard in Swahili, alerts black rhinos to nearby humans and may have developed the behavior to protect food sources existing on rhinos’ ...

The vampire bat might be nature’s purest super-villain. But it’s not the only flyer known to subsist off of the blood of its prey. Here are four birds that also practice "hematophagy." Hematophagy is ...