June 24, 2017

Annelids

Worms

Annelids are invertebrates consisting of over 17,000 species of worms including ragworms, earthworms, and leeches. Annelids can be found in moist and wet earth, as well as marine and freshwater environments. Many annelids, such as leeches, are considered parasites. Annelids range in size from … [Read more...]

Fish

Fish

The fish family includes a wide variety of vertebrate animals that live in the water. Although there are over 31,500 different types of fish, with many diverse characteristics, the one thing that fish have in common is that they breathe oxygen from the water through gills. Fins are also a common … [Read more...]