After the ancestors of modern humans split from those of Neanderthals and Denisovans, their Asian relatives, about one hundred amino acids, the building blocks of proteins in cells and tissues, changed in modern humans and spread to almost all modern humans.
Some copepods, diminutive crustaceans with an outsized place in the aquatic food web, can evolve fast enough to survive in the face of rapid climate change, according to new research that addresses a longstanding question in the field of genetics. Barely more than a millimeter long, the copepod Eurytemora affinis paddles its way through the coastal waters of oceans and estuaries around the world in large numbers — mostly getting eaten by juvenile fish, like salmon, herring and anchovy.
Scientists have identified more than 1,500 genetic differences between migratory and non-migratory hoverflies.
Kamptozoa and Bryozoa are two phyla of small aquatic invertebrates that are related to animals like snails, earthworms, leeches, and ribbon worms.
Scientists from UChicago and Spain use CRISPR to show how genes that control growth at the end of fish fins play the same role in fingers and toes.