Asian pit vipers of the genus Trimeresurus are notoriously difficult to tell apart and continue puzzling researchers to this day. Some species groups have similar-looking species (different species ...

Learn how these two lizards can be both alike and different with the Memphis Zoo. Learn how these two lizards can be both alike and different because of how they have adapted to their environments ...

Finding and describing new species can be a tricky endeavor. Scientists typically look for distinctive characters that can differentiate one species from another. However, variation is a continuum ...