Scientists found that different species of woolly mammoths were interbreeding, creating hybrid babies with traits from both species.

Warming temperatures have prompted a rare hybridization of a blue jay and green jay, according to researchers at the ...

Scientists in Texas confirmed the existence of a rare hybrid bird, the offspring of a green jay and a blue jay. It’s one of the first known cases of climate change driving two species into the same ...

Usually, when two different species mate, it’s a disaster. At least, that’s what scientists had generally thought about ...

Unusual weather patterns are bringing once-distant bird species into contact, giving rise to rare hybrids that fascinate scientists and birders alike.

Mammoth species in North America repeatedly interbred over thousands of years, creating hybrid offspring, a new fossil analysis has revealed. The findings alter what we know about the evolution of ...

What do you get when you cross a blue jay with a green jay? That’s not the start of a joke, but the subject of a new study that aims to describe a hybrid bird never encountered before in the wild. The ...

North America's mammoth species were breeding together within the past 40,000 years. Fossil teeth found in Canada show that Columbian and wooly mammoths regularly had calves together where the ...

This article was originally published on mentalfloss.com as For the First Time, Wild Blue Jay and Green Jay Produce Colorful Hybrid Offspring in Texas. It kinda looks like a blue jay, but it‘s a ...

Today's potato evolved from tomatoes 9 million years ago, according to new research. Natural "interbreeding" in the wild between tomato plants and potato-like species from South America gave rise to ...

A homeowner’s sighting near San Antonio led to the discovery of the first known blue jay–green jay hybrid, raising climate change concerns.