Organs often have fluid-filled spaces called lumens, which are crucial for organ function and serve as transport and delivery ...

This research, supported by the U.S. National Science Foundation, is an important step toward helping biologists understand ...

Cell division is an essential process for all life on Earth, yet the exact mechanisms by which cells divide during early ...

Male seahorses are responsible for carrying and giving birth to their young, a role reversal rarely seen in the animal ...

The reproductive biology of reptiles encompasses a wider range of strategies than is often assumed in general accounts of the ...

The curved shape of a zebrafish egg causes unequal cell divisions, creating larger cells near the animal pole and smaller ...

The mystery of early embryonic communication is starting to be unraveled thanks to a new stem cell-based model.

Life begins with a single fertilized cell that gradually transforms into a multicellular organism. This process requires ...

Over 130 mammal species can delay embryonic development, giving their offspring the best possible chance of survival in ideal ...

Placozoa are among the simplest animals in the world. They were initially discovered living on the walls of aquariums in a ...

The animals at the Dallas and Fort Worth zoos are more than cute — they’re built for survival in surprising ways. From penguins crying salt to kangaroos pausing pregnancy, these and other biological ...