Freshwater hydra can be fairly common. This video shows the movement and hunting of a green hydra. It is green due to a symbiotic relationship with algae.
This video describes some important characteristics of insect orders that undergo incomplete metamorphosis. After a brief description many pictures of the insect orders are seen. Try to guess which order it belongs to before the answer is revealed.
This animation shows the processes of transcription and translation of protein synthesis.
A better quality version is available at http://www.americanb ookcompany.com/scien ce
What process causes leaves to change color in the fall? Where do fall colors come from? This video shows images of leaves as they slowly reveal their fall colors. Yellow, brown and red pigments are shown and explained.
Ever wonder about the tiny little bugs you occasionally find in or around your home? This video goes over some information about some of the lesser known insect orders. At the end some pictures of each insect are seen. Try to guess which order it belongs to before the answer is revealed.
This video shows an Asian lady beetle (Harmonia axyridis), cleaning her appendages. Although a helpful garden predator, this species is an invasive species in the United States. Ladybugs are a type of beetle and belong to the insect order Coleoptera. Looking closely you can see the exoskeleton, movement of jointed appendages and the hooked foot adaptations for climbing and securing prey.
