The document summarizes information about two extinct animal species: the Caribbean monk seal and the Baiji seal from China. The Caribbean monk seal was a carnivorous mammal scientifically named Phocidae that went extinct in 1910. The Baiji seal lived in China's Yangtze River, weighed 135-320 kg, and went extinct in December 2006 due primarily to threats from overfishing, boat traffic, habitat loss and pollution. Photos and videos are included to provide visuals of these now extinct seal species.