These palps are covered with sensory hairs and scales, and test whether something is food or not. They are strong fliers with three fully developed pairs of legs. They lay spherical eggs. 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.