Discover which woodpeckers mate for life, and which pair up and then split up. Also learn how long pileated woodpeckers live.

The sharp, elongated bills of green hermit hummingbirds aren’t just fine-tuned for feeding; they also allow males to joust ...

While female green hermit hummingbirds have curved bills, males’ straighter mouthparts are built for stabbing one another, a ...

The iridescent green hermit hummingbird is known for its elongated bill, which is fine-tuned for feasting on a particular ...

Quick Take Ruby-throated hummingbirds migrate about 2,000 miles annually from North America to the Yucatan Peninsula and back ...

Couples married for decades reflect on how love, patience and resilience helped them weather life’s challenges and sustain ...

How does a person’s sexual history affect their chances for long-term love? Research on partner numbers and timing can help ...

When Bald Eagles pair up, they take the plunge—literally—locking talons high in the air and tumbling toward the ground, ...

When it comes to relationships, men and women have been under somewhat different evolutionary pressures. As a consequence, women tend to connect love and sex more than men do.