Natural History & Ecology: Mature striped dolphins may range in length from 180 cm to 256 cm and 110 to 160 kg in weight. Average length at sexual maturity has been found to be 195 to 220 cm for both males and females of the species at an age of 9 to 10 years old.
Bog iron is a type of iron ore composed of mostly mineral goethite and other iron-bearing minerals with impurities like clay or plant debris. Bog iron used to be a very important ore of iron before better alternatives like banded iron formations were discovered.
Ductile iron is one of the most commonly used pipe materials in our modern society. The first ductile iron pipe was cast experimentally in 1948 and was introduced into the marketplace in 1955. By the late 1970's, ductile iron pipe had replaced gray cast iron pipe in the marketplace.