Those impossibly long legs that make giraffes look like they’re walking on stilts aren’t just architectural supports for a tall body. Scientists have discovered they’re actually energy-saving devices ...

In humans, chronic high blood pressure forces the heart to work too hard. The muscle of the left ventricle thickens in defense, a condition called hypertrophy. Eventually, this leads to fibrosis, ...

Giraffes are just as astonishing on the inside as they are to look at. Standing up to 19 feet tall, they require enormously high blood pressure to pump blood up to the head, yet they suffer few, if ...

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 ...

With their crane-like necks, spindle legs and knobbly knees, giraffes are among the best-loved and most recognizable of animals. Despite their elevated stature, however, giraffes have kept their ...

A reassessment of the iconic species has “some dramatic implications for how we view giraffe conservation across Africa,” a new study concludes. A Masai giraffe, native to East Africa, is one of four ...