How is it possible to move in the desired direction without a brain or nervous system? Single-celled organisms apparently manage this feat without any problems: for example, they can swim towards ...

Scientists discover single cell creatures can learn new behaviours despite having no nervous system. ... “These creatures are so different from animals with brains.

The finding might help explain how many other single-celled organisms engage in extraordinarily sophisticated behaviours despite having no brain or nervous system . "If you can make a computer out ...

Most animals require brains to run, jump or hop. The single-celled protozoan Euplotes eurystomus, however, achieves a scurrying walk using a simple, mechanical computer to coordinate its microscopic ...

Shimmering, gelatinous comb jellies wouldn’t appear to have much to hide. But their mostly see-through bodies cloak a nervous system unlike that of any other known animal, researchers report in ...

The researchers then constructed evolutionary trees, or phylogenies, showing the relationship of those genes in the single-celled choanoflagellate to multi-cellular animals, including jellyfish ...

The research team began by analyzing gene expression — which bits of DNA are converted into RNA used to make cell proteins — in more than 65,000 individual cells across four placozoan species.

Sponges are more closely related to us than some animals with a nervous system. John Timmer – May 17, 2023 2:38 pm | 34 These complex creatures seem to be the earliest branch of the animal tree.

Ecdysozoa is a group of animals that includes arthropods (insects, crustaceans), nematodes, and other worm-like organisms. One of the defining hallmarks of ecdysozoan animals is ecdysis, the process ...

Worse, a wide variety of unrelated neuropeptides are also made by many single-celled animals, or protozoans. The evolutionary trail for brain neuropeptides seemed to vanish into a thicket. This ...