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 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 often used as textbook examples of adaptive evolution, with their elongated necks, specialized cardiovascular systems, and distinctive coat patterns representing striking outcomes of ...

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 ...

Giraffes are iconic for their incredibly long necks, which are not only a standout physical feature but also a marvel of evolutionary adaptation. These necks can measure up to six feet long, making ...

Sure, some members of this list are cliché, but for good reason. Giraffes have as many vertebrae in their necks as we do (seven), yet theirs are doing a whole lot more. The elegant giants use these ...

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 ...

(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 ...