If sperm can't swim, life can't go on. And a new study suggests that when evolution hit upon an effective strategy for making sperm move, it stuck with it.
Ecology
Nov 30, 2021
0
41
Blue Cavern Point on the eastern edge of Santa Catalina Island, some 25 miles off the coast of San Pedro, California, is a hotbed of life. In the shallow edges of the water cling starfish, sea urchins and sea cucumbers. Farther ...
Plants & Animals
Jul 29, 2021
0
662
One of the largest and most important finds of exquisitely preserved Jurassic echinoderms—spiny-skinned marine animals such as starfish and sea urchins—has been uncovered by a University of Birmingham Research Associate.
Paleontology & Fossils
Jul 22, 2021
0
333
Body axes are molecular coordinate systems along which regulatory genes are activated. These genes then activate the development of anatomical structures in correct locations in the embryo. Thus, the body ensures that we ...
Evolution
Jun 29, 2021
0
13
Sea urchins receive a lot of attention in California. Red urchins support a thriving fishery, while their purple cousins are often blamed for mowing down kelp forests to create urchin barrens. Yet for all the notice we pay ...
Ecology
Apr 6, 2021
0
1182
Many life forms use light as an important biological signal, including animals with visual and non-visual systems. But now, researchers from Japan have found that neuronal cells may have initially evolved to regulate digestion ...
Evolution
Apr 6, 2021
0
56
Deprive a mountain range of its wolves, and soon the burgeoning deer population will strip its slopes bare. "I now suspect that just as a deer herd lives in mortal fear of its wolves, so does a mountain live in mortal fear ...
Ecology
Feb 17, 2021
0
588
A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home—a behavior previously undocumented—but only if their neighborhood is stocked with their favorite ...
Plants & Animals
Nov 3, 2020
0
59
Early people were rapidly adapting to climate change as they made their way towards Australia tens of thousands of years ago, new research shows.
Archaeology
Oct 2, 2020
7
358
The impacts of predator loss and climate change are combining to devastate living reefs that have defined Alaskan kelp forests for centuries, according to new research published in Science.
Ecology
Sep 10, 2020
0
949
