Featured Creatures

Planarians are free-living flatworms. Like other flatworms the planarian has a bilateral body plan with a brain and stereo eyes that enable it to actively hunt. Unlike the flashy flatworms that live in the ocean, the thousands of species of planarians live either in freshwater or on land around the world.

Glass sponges get their name from their spicules built from silica – glass. Sponges don’t have skeletons like ours; instead they have spicules, which are the structural components like bricks. The glass sponge’s design has intrigued engineers who want to understand how they build glass structures of such strength. 

We all know that bees are pollinators. And that their pollinating is essential to ecosystems and the food we eat.Sadly, wild bees and honeybees have been in decline in recent decades. Parasites, pesticides, pathogens, and the climate crisis are main factors impacting bees today. As the only insect that is responsible for at least one third of our food, we may literally starve from their decline.Can robot bees help?Photograph credit: Denise Ryan

One of the most abundant creatures in the aquatic world is the tiny crustacean called a copepod. Most live as plankton in the open ocean. But they also live in the deepest ocean trenches, freshwater streams and lakes, in caves, and really anywhere there’s water — from frigid to very hot. 

Ammonites may be the most familiar fossil to us — aside from dinosaurs.What are those spiral rocks that seem to come in every size? Ammonites were molluscs, specifically cephalopods, most closely related to octopus and squid living today.

We’d like to introduce you to an animal we don’t explore much at Shape of Life: Bryozoans. Bryozoans, also known as Ectoprocta, and commonly referred to as moss animals (bryophytes are mosses) have been around since the Cambrian.

photo by Cheryl MooreheadWalking the beach you may be lucky enough to find an intact sand dollar. These are the bleached exoskeleton of dead animals. What do you know about live sand dollars? Notice the five-rayed star on the top of your sand dollar. Sand dollars are echinoderms, related to sea stars and sea urchins. Like all echinoderms, their bodies are based on five-part symmetry (watch our video on the body plan of these animals: Five part symmetry).

You may remember seeing an anglerfish in the movie Finding Nemo. It definitely made an impression on us.Learn more about how the freaky Anglerfish lures is prey.

If you have ever looked at a chiton glued tightly to a rock, you might have wondered about its life. This well-armored creature’s body is covered by an overlapping eight-part shell (called shell valves), which protects its soft molluscan body.

Watching water striders skimming on the water is mesmerizing. People call these bugs many names based on how they move on the water: water striders, water skippers, pond skaters, water skeeters, water skippers, and even Jesus bugs (because these bugs do walk on the water).