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Parasitism
A parasite is an organism that spends a significant portion of its life in or on the living tissue of a host organism and which causes harm to the host without immediately killing it. Parasites also ... > more -
Whooping Crane
The Whooping Craneis a very large crane. It is the tallest North American bird. Adults are white; they have a red crown and a long, dark, pointed bill. They have long dark legs which trail behind in ... > more -
Coral reef
A coral reef is a type of biotic reef that develops in tropical waters by the growth of coralline algae, hermatypic corals, and other marine organisms. Coral reefs are typically massive biogenic ... > more -
Insects (including Butterflies)
Pests and Parasites
Animals
Agriculture and Food
Endangered Plants
Organic
Biological pest control
Biological control of pests and diseases is a method of controlling pests and diseases in agriculture that relies on natural predation rather than introduced ... > more -
Convergent evolution
In evolutionary biology, convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar ... > more -
Bighorn Sheep
Bighorn Sheep is a species of sheep in North America with two endangered subspecies, Desert Bighorn Sheep and California Bighorn Sheep. Bighorn Sheep are named for the large, curved horns borne by ... > more
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