Ecosystems
Ecosystems are communities of living things that are made up of different shapes and sizes...
Two groups of poisonous snakes inhabit the United States. Most poisonous snakes are in the family "Crotalidae," otherwise known as pit vipers. These snakes have a small pit between the eye and nostril, which they use to detect heat. This allows them to sense prey in the dark. Pit vipers inject their poison through two, long fangs. Some pit vipers, like the Mojave and canebrake rattlesnakes, deliver neurotoxic venom. This type of venom affects the brain and spinal cord. The second group of poisonous snakes in America is the family "Elapidae." These are coral snakes, which are found mostly in the southern states. These little snakes with small teeth can really pack a punch of venom when they bite. Several victims of coral snake bites experienced respiratory paralysis from the neurotoxic venom. Approximately 7,000 to 8,000 people are bitten by venomous snakes each year in the United States, and about five of them die. Doctors treat snakebite victims with antivenin.
Ecosystems are communities of living things that are made up of different shapes and sizes...
On some dark nights in certain parts of the world, an amazing green glow appears on the ho...
The largest fish in the world is the whale shark. This gigantic ocean creature can grow up...