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 ...

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Giraffes are best known for their elegant necks, stretching high over the savannah like periscopes. We have some pretty good ideas about why evolution granted them these long necks: access to the ...

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 ...

(WHTM) — Pennsylvania researchers may have answered the age-old question of “does size matter” – well at least for the reason on why giraffes have long necks. A “sex-for-necks” theory has long ...

Baby giraffes, called calves, are born after a long and arduous 15-month gestation. This video by @youronlysourceofseratonin shows a newborn calf struggling to keep its eyes open and it’s neck upright ...

We're in Tanzania on safari, when two stately looking giraffes walk into view, looking thoughtful, gentle, as giraffes do, and all of a sudden one of them drops way low and swings his whole neck and ...

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 ...