Boulenger’s backpack frog uses one of the strangest reproductive strategies in the amphibian world. Females carry fertilized ...

These three bird courtship displays are so bold, precise and theatrical that they make human romance look a little ...

The iridescent green hermit hummingbird is known for its elongated bill, which is fine-tuned for feasting on a particular tropical flower in the rainforests of Central and South America. But once ...

The sharp, elongated bills of green hermit hummingbirds aren’t just fine-tuned for feeding; they also allow males to joust like knights over mates The iridescent green hermit hummingbird is known for ...

(THE CONVERSATION) People typically think about evolution as a linear process where, within a species, the classic adage of “survival of the fittest” is constantly at play. New DNA mutations arise and ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) David Toews, Penn State (THE CONVERSATION) People typically think about evolution as a ...

The original version of this story appeared in Quanta Magazine. Imagine a town with two widget merchants. Customers prefer cheaper widgets, so the merchants must compete to set the lowest price.

Michael A. Little 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 ...

Paleontologists have long wrestled with how to differentiate between male and female dinosaurs based on their fossils. But new research may bring scientists closer to identifying the sex of one group ...

This is read by an automated voice. Please report any issues or inconsistencies here. Tarantula mating season runs from about July to November, skewing toward October in California. Female tarantulas ...