APRIL 30 (Reuters) — Believed to be more than 400 years old and nearly 200 times the size of a chicken egg, an extremely rare elephant bird egg will be auctioned in London this week, with an estimated price tag of up to $76,000. The egg, over 30 centimeters (11.81 inches) high, was laid by the now extinct elephant bird, a giant flightless bird indigenous to Madagascar, according to auction house Sotheby’s. The bird, believed […]