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Dendrobates leucomelas, a poisonous frog from Venezuelan Guiana
Lampreys (sometimes also called lamprey eels) are a family of jawless fish
Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
Children with disabilities used to be sent to special schools. In a process called mainstreaming or ...
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
In amphibians, lizards, snakes, and turtles, the heart has three chambers: two atria and one ventric