A tiny, non-stinging wasp species is the first to appear in scientific literature alongside its fully sequenced genome.

A new kind of new saber-toothed predator was hiding in plain sight: at the Smithsonian National Museum of Natural History.

A tiny fish just under half an inch long has been able to hide in plain sight thanks to its resemblance to a related fish. But, it's a brand new species.

Mabui calculus, a newly-discovered crab is unique among 7,800 known species, because it has asymmetrical male and female reproductive structures.

Ripley. Katniss. Uhura. They're not just science fiction heroes. Now several new species of beetles share their names along with other legendary characters.

Four new species of sponge were lying undiscovered in plain sight. They now have scientific names and places in the sponge family tree.

Researchers have discovered a new species of saber-toothed cat. The species is one of the largest cats to have ever lived on Earth, researchers say.

Researchers have discovered a new species of firefly in Singapore's last remaining freshwater swamp forest.

Researchers have identified a new species of praying mantis after discovering imprints of its fossilized wings in present-day Quebec.

Two newly discovered species of fungi infect flies and then get them to rain down spores to infect others before they die, researchers have found.