Chromosphaera perkinsii is a single-celled species discovered in 2017 in marine sediments around Hawaii. The first signs of its presence on Earth have been dated at over a billion years, well before ...

Unicellular organisms, such as microalgae, reproduce by cell division. But when the nutrients available to them are exhausted, they stop this process. The cells survive and age, but can no longer ...

Images of the multicellular development of the ichthyosporean Chromosphaera perkinsii, a close cousin of animals. In red, the membranes and in blue the nuclei with their DNA. The image was obtained ...

Approaches to describe the tree of life have been based on the physical characteristics and metabolic features of distinguished organisms. The advent of molecular methods has widened the diversity of ...