The group with the world's simplest animals -- tiny blob-like life forms with no organs and just a few cell types -- finally has a fleshed-out family tree. The study comes more than 100 years after ...

Nearly 30 years ago, a research vessel off the southeast coast of Australia dragged up samples of the sea floor from depths of 400m and 1000m. Hidden away within the samples were a few unexpected gems ...

v. 1. Histological classification of bone and joint tumors of domestic animals / compiled and reviewed by M.V. Slayter [and others] -- v. 2. Histological classification of mesenchymal tumors of skin ...

An international team of scientists including Albert Poustka from the Max Planck Institute for Molecular Genetics in Berlin has discovered that Xenoturbellida and the acoelomorph worms, both simple ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Here's why Dickinsonia challenges our previously held ...

Tiny honeycomb-like colonies from southern China have opened a long-running gap in the story of animal life. For decades, ...

Phyla of Tiny Filter Feeders Find a New Spot on the Tree of Life A new study using fairly complete genetic datasets of two phyla of small suspension feeders (Ectoprocta and Entoprocta) reopens the ...

Around half a billion years ago, life on Earth went through a rapid transformation, diversifying into almost all of the major animal groups we see today. How and why the Cambrian explosion occurred ...