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 ...

Fossils unearthed in China of a forerunner of the modern giraffe are offering insight into the early evolution of this mammal's trademark long neck, driven not only by the benefit of reaching high ...

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 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 ...

(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 ...

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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 have a unique diet centered on leaves and twigs from trees like acacia, mimosa, and wild apricot. Discover insights ...

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 ...

Douglas R. Cavener receives funding from Penn State University. 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 ...