National Geographic
Menu

“Killer Sperm” Found, Prevents Worms From Cross-Breeding

In the first identified case of “killer sperm,” females that mate with males of another species can become sterile or even die, a new study says.

Ask Your Weird Animal Questions: Winged Creatures

How far do peacocks fly? What was the largest flying dinosaur? Ask Your Weird Animal Questions takes to the wing this week.

Are Crows Smarter Than Children?

One clever young bird solved a problem that has stumped six-year-old children, according to a new study.

Dogs Get Jealous, Too

Jealousy in canines probably evolved to protect important social bonds in the pack, according to a new paper.

Elephants Have 2,000 Genes for Smell—Most Ever Found

The large mammals have 2,000 genes related to smell, the most ever discovered in an animal, a new study says.

Bats Set Their Internal Compass at Dusk—A First Among Mammals

Bats may be known for their stealth in the dark, but a new study shows they need light from the setting sun to navigate.

Global Warming Boosting Reindeer on Norwegian Island—For Now

Reindeer on Norway’s Svalbard archipelago are bucking the trend and thriving, according to a long-term study.

Mystery Solved: Why Peacocks Got Their Eyespots

The brilliant plumage of peacocks and related birds may be a result of female preference, a new study says.

Ask Your Weird Animal Questions: Animal Eyes

From cats to clams, the animal kingdom literally has many different ways of seeing things. This week on Ask Your Weird Animal Questions, we’re taking a visionary look at nature.

Q&A: Inside the Fight Against Wildlife Trafficking in Brazil

Conservation biologist Juliana Machado Ferriera talks about her work to halt illegal wildlife trade in Brazil, which affects nearly 40 million animals each year.

Watch: Sneaky Octopus Dismantles Camera

Such behavior isn’t out of the ordinary for octopi, among the most clever—and mischievous—of the invertebrates, expert says.

Transgender Algae Show How Males and Females Came to Be

How sexes evolved in the first place has been a lasting mystery in biology. Thanks to some transgender algae, scientists may have cracked this evolutionary whodunit.

“Monster” Sea Scorpion Was a Gentle Giant

New research suggests that fearsome-looking giant sea scorpions were actually likely gentle giants.

Ask Your Weird Animal Questions: Spiders and Other Animals With Bite

We love getting questions with teeth, and this week’s Ask Your Weird Animal Questions tackles animals and their various bites.

Plant Blasts Birds With Pollen Using “Bellows”

A rain forest plant baits birds with puffy treats, then blasts any takers with pollen—a unique discovery, a new study says.