To the casual observer on a photo safari, the giraffe is an iconic, gentle giant browsing the acacia tops. But to a cardiovascular physiologist, a giraffe is a walking, breathing hydraulic paradox.

Add Yahoo as a preferred source to see more of our stories on Google. Happy mother and son watching and feeding giraffe in zoo. Happy family having fun with animals safari park on warm summer day.© ...

But this extreme feature comes at a cost: namely the energy required for the heart to pump blood up to the head against gravity. As a result, giraffes have high blood pressure, more than twice that of ...

The Cheyenne Mountain Zoo is celebrating 100 years in 2026, and they're ringing in this milestone in a major way. The construction of a new welfare-focused facility is underway, which the Cheyenne ...