8.5 x 7 in. (21.6 x 17.8 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...

Yawning, a universal reflex, is characterized by a deep inhalation and short exhalation. While often linked to tiredness, its exact cause remains a mystery. Though oxygen deficiency is a common ...

8 x 9 in. (20.3 x 22.9 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...

Safari tourists experienced some tense moments when they encountered an angry hippo in the middle of the road at the Manyoni Private Game Reserve in South Africa. Driver and guide Sandiso ...

Original Theatrical Trailer "Fantasia: The Making of a Masterpiece" ...

They can easily outrun a human on land. This makes them one of the most dangerous animals in Africa. Hippos communicate through grunts, bellows, and wheezes. They also use body language, such as ...

Choose from Hippo Tooth stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else. Video Back Videos home Signature collection Essentials ...

Ever “caught” a yawn after someone nearby yawned? As it turns out, humans aren’t the only animals that are contagious to yawning. Not only do animals yawn, many animal species, and interestingly ...

Hippos are classified as "vulnerable to extinction" by the International Union for the Conservation of Nature (IUCN) Red List and have been called the "neglected megafauna," with a lack of ...