discuss differences in how the knobby star and the sunflower star feed. Why does the knobby star evert its stomach from its body? Hand out a copy of the Sea Star Adaptation Chart to each student.

A new species of sunflower, Ovicula biradiata, has been identified in Big Bend National Park, Texas. This discovery, made by a park volunteer, marks the first new genus of plant documented in a U ...

Biologists identified 37 of these so-called ‘supergenes’ in wild sunflower populations, and found they govern the modular transfer of a large range of traits important for adaptation to local ...