Maybe you've seen a "mermaid's purse" while walking on the beach. Not actually an accessory for the mythical creature, these small casings are the eggs of sharks and their relatives. For around 455 ...

What are some animals that give birth to huge numbers of offspring at once?” (Watch a female sea urchin produce millions of eggs.) The mola, or ocean sunfish, looks like an animal cracker someone bit ...

Chameleons are among nature’s most fascinating reptiles, admired for their colour-changing abilities, swivelling eyes, and remarkable camouflage. But beyond these iconic traits lies another intriguing ...

"The platypus is the only venomous mammal in the world," says Zedrosser. Males have venomous spurs on their hind legs, which they use during the mating season to fight other males. The venom can't ...

European cuckoos lay very different eggs depending on the host species. Genetic analyses have revealed how this adaptation is inherited without leading to speciation.

An iguana at a zoo in the United Kingdom performed a "virgin birth," which zookeepers have hailed as one of the "rarest events in the animal kingdom." Workers at the Exotic Zoo in Telford, England, ...

An iguana at a zoo in the United Kingdom has given birth despite never having mated with a male, according to staff at the facility, who have hailed the "virgin birth" as "one of the rarest events in ...