Specifically, it is the tissues in the bone which makes up the skeleton. This bone tissue is composed of cells with extracellular matrix that is calcified. Bone contains collagen and calcium phosphate which contribute to it mineral structure and firmness.
Newts are generally a safe pet, however there are a few species that are known to carry salmonella, and other species are in fact poisonous, but only if consumed. The brightly colored bellies of a newt are one way to tip a person off to their toxicity.ewts are generally a safe pet, however there are a few species that are known to carry salmonella, and other species are in fact poisonous, but only if consumed. The brightly colored bellies of a newt are one way to tip a person off to their toxicity.
The most common are Dendrobates auratus, the green and black poison dart frog, Dendrobates azureus, the blue poison dart frog, Dendrobates histrionicus, Dendrobates lehmanni, Dendrobates leucomelas, the yellow-banded poison dart frog, Dendrobates pumilio, the strawberry poison dart frog, and Dendrobates tinctorius.endrobates are amphibians and are members of the family Dendrobatidae. They are most recognized for their extravagant colours that warn potential predators of their highly toxic defensive chemistry. Their common names are the Poison Dart Frogs or Poison Arrow Frogs.