These butterflies are found from the tropics to more temperate regions. Examples include the Ulysses and the Tiger Swallowtail . Parasitism is a type of symbiosis . The eggs hatch and feed on the live host tissue. When the eggs hatch, they feed on the caterpillar and eventually kill it.
Peafowl are magnificent birds from India.
The Pennsylvanian Period lasted from 325 to 280 million years ago. The period is the basic unit of geological time in which a single type of rock system is formed, lasting tens of millions of years. It ended with the largest mass extinction and was followed by the Triassic period of the Mesozoic Era . A phalanx is a single finger or toe bone. The phylogeny of an organism reflects the evolutionary branch that led up to the organism.