Known specimens were about 8 to 14 feet (2.4 to 4.3 m) long and weighed 170 to 200 pounds (77 to 91 kg).However, the adult size is unknown, as no known adult specimens of the genus have been found.The first snag in the road is that in the US a foundation has to give away money, so he called it the Creation Science Ministries. According to CMI they gave significant financial support to Ham to start his new US ministry, In 1995, both of Ham's ministries changed their names to become Answers in Genesis-US and Answers in Genesis-Australia.

Seen another way, the half life is the time it takes for half the atoms of an isotope in a mass of that isotope to undergo decay.

Recall that atoms are the basic building blocks of matter.

Atoms are made up of much smaller particles called protons, neutrons, and electrons.

Fossils have been found in the western United States (and supposedly the Marnes de Bleville locality in Europe), Dryosaurus had a long neck, long, slender legs and a long, stiff tail.

Its arms, however, with five fingers on each hand, were short.