A fossil is pictured in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

A picture taken on January 14, 2015 shows a marine organism at the Wadi el-Haitan Fossil and Climate Change Museum in Fayoum, 60 km south of the Egyptian capital Cairo (AFP)

Skulls of two Basilosaurus Whales are displayed at the Wadi Al-Hitan Fossil and Climate Change Museum in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

People walk around the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

General view of the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

A waterfall is seen at Wadi El-Rayan in the Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

The skull of a Basilosaurus Whale is seen on display at the Wadi Al-Hitan Fossil and Climate Change Museum in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

A fossil is pictured in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

The largest intact Basulosaurus isis whale fossil, which is on display at the Wati El Hitan Fossils and Climate Change Museum, on the opening day, in the Fayoum oasis, Egypt, Thursday, Jan. 14, 2016 (AP)

A fossil is pictured in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

A fossil is pictured in the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

A man sits near the waterfall at Wadi El-Rayan in the Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)

People walk around the natural reserve area of Wadi Al-Hitan, or the "Valley of the Whales", at the desert of Al Fayoum Governorate, southwest of Cairo, Egypt, January 14, 2016 (Reuters)