Flatworms can either regrow lost heads or reproduce sexually, not both

When flatworms have the ability to regenerate, they lose the option to lay eggs – instead, they produce offspring by splitting themselves apart

Biophysicists Uncover Powerful Symmetries in Living Tissue

After identifying interlocking symmetries in mammalian cells, scientists can describe some tissues as liquid crystals — an observation that lays the groundwork for a fluid-dynamic theory of how tissues move

Wild male palm cockatoos rock out with custom drumsticks

The instruments are part of their mating display and showcase their creativity

‘Thunder beast’ fossils show how some mammals might have gotten big

Rather than a straightforward march, evolving to be big sometimes involved getting smaller