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.
Salamander is a common name for the order of Caudata which includes 9 families, of which 8 are found in North America. Newt is a common name applied to certain members of a family of relatively small salamanders.Also in the order of Caudata are sirens which are aquatic salamanders, which have no hind limbs. So newts and sirens are really salamanders.Salamanders make up a mere 350 species out of the 4000 or so known species of amphibians. APPEARANCE: Often mistaken for lizards, salamanders (sometimes called sallies by people who raise them) have soft, moist skin covering their long bodies and even longer tails.They have no scales, claws or external ear openings, and they lay eggs that are surrounded by clear jelly.alamander is a common name for the order of Caudata which includes 9 families, of which 8 are found in North America. Newt is a common name applied to certain members of a family of relatively small salamanders.