Add Yahoo as a preferred source to see more of our stories on Google. A female giraffe browsing. Everything in biology ultimately boils down to food and sex. To survive as an individual you need food.

A study explores body proportions of Masai giraffes, lending insight into why giraffes have such long necks and how this trait might have evolved. Why do giraffes have such long necks? A study led by ...

Although male and female giraffes have the same body proportions at birth, they are significantly different as they reach sexual maturity. Females have proportionally longer necks and longer bodies ...

A Penn State researcher has been trying to get to the bottom of the age-old question of why giraffes have long necks. Ed Reschke Getty Images Editor’s note: The Focus on Research column highlights ...

Giraffes have the longest necks of any living animal but scientists can't agree on why. Scientists largely agree that males drove the evolution of long necks to compete for mates. But a new study ...

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 ...

Giraffes, with their distinctive body shape and variations in coat patterns, have long been an example in evolutionary biology teachings. They are a textbook example of how species adapt to their ...

Everything in biology ultimately boils down to food and sex. To survive as an individual you need food. To survive as a species you need sex. Not surprisingly then, the age-old question of why ...

Editor’s note: The Focus on Research column highlights different research projects and topics being explored at Penn State. The following originally appeared on The Conversation. Everything in biology ...