Lumbar Herniated Disc Video. 1  Learn how a lumbar disc herniates and can cause lower back pain. 2  Sciatica is leg pain caused by a problem in the low back. 3  See how a disc degenerates and how it can cause pain and other symptoms.
Salamanders are nocturnal and come out from their hiding places during moist nights to hunt for prey. Most species eat large amounts of invertebrates such as worms, insects and snails. A few species, like spring and red salamanders, will even eat other salamanders. Salamanders are equally important as food for many other animals, such as raccoons, opossums, bears, mink, river otter, frogs and snakes. In some places they are the most abundant vertebrate animals in the forest.
Like the frogs, most salamanders have a larval stage in the water and an adult stage which may be spent in water or on land. They are carnivorous in both stages of life. Like frogs, most salamanders lay their eggs in water. The larvae which hatch in the water have gills for breathing.irens are a special type of salamander found only in North America. They remain in the larval stage with long bodies, gills, no hind legs, and tiny front legs. They are often mistaken for eels.