Three truths
- Timed
- Branched off about 580 million years ago · the last 14% of life's story
- Named
- ≈1,300 named living species · 0.08% of all named
- Weighed
- Part of All other animals (total minus the parts above) (≈0.13 Gt C), not measured separately.
Eukaryotes · animals
Tardigrades
Living · roughly 1,300 described species
A full profile for this group has not been written yet. Its place in the tree and its dates are shown below.
Water bears can survive drying out, deep freezing and even open space.
- Branched off
- About 580 million years ago (approximate)
- Parent lineage
- Moulting animals
Classification
Sources
- TimeTree: the timescale of life · TimeTree
- Open Tree of Life · Open Tree of Life
- Tree of Life Web Project · Tree of Life Web Project