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.

Why do giraffes have such long necks? A study led by Penn State biologists explores how this trait might have evolved and lends new insight into this iconic question. The reigning hypothesis is that ...

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 ...

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Less like a Ferrari and more like a junkyard go-kart, the arrangements of organs within our vertebrate bodies are far from well-ordered. This is especially true of our internal wiring, specifically ...

Giraffes are a beautiful and powerful example of what adaptive evolution can achieve. However, in recent years, they have attained notoriety for a completely different reason: it has been suggested ...

Laura Bertola does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Everything in biology ultimately boils down to food and sex. To survive as an individual you need food. To survive as a ...

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 ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Douglas R. Cavener, Penn State (THE CONVERSATION) Everything in biology ultimately ...