The Arizona black rattlesnake is a venomous species in the American southwest. It is known for color-changing abilities, ...

“Humans and fish aren’t close evolutionary cousins,” Siek said. “We’re part of the same phylum called Chordata. We share a ...

Losing Opens Up New Possibilities for Subsequent Gains Evolution is traditionally associated with increasing complexity and ...

The Arabian cobra is a dangerous snake found in Saudi Arabia, Yemen, and Oman. It has a venomous bite and helps control ...

Animals are classified in a variety of ways. Basically, they are divided by being vertebrates (most having a backbone) and ...

Apidae is the largest family of bees, with over 5,700 species. This includes the famous honey bees and bumblebees. Andrenidae is an example of a family entirely composed of solitary bees. Rather than ...

With an estimated 200 billion trillion stars in the observable universe, the existence of other technological species is highly likely, potentially even within our Milky Way galaxy.

But advance online voting has already begun. For $10, voters will get five votes for the chordate (phylum for animals with a backbone for those who don’t remember biology class) of their choice.

Long before a species goes extinct, the population becomes smaller and more fragmented, shrinking the number of potential mates and therefore genetic mixing. This leaves a species more vulnerable to ...

A mouse is a little rat with a sharp nose, fuzzy round body, enormous ears and a long, frequently bald tail. Many sorts of mice are isolated into subfamilies of either Old World or New World species.