List of extinct species that got lost from earth throughout history

Many species have become extinct throughout history, including the dodo bird, Thylacine (Tasmanian tiger), passenger pigeon, and Steller's sea cow, to name a few. These extinctions have occurred due to various factors, including habitat loss, climate change, and hunting by humans.

Prehistoric Period

• Non-avian dinosaurs: Extinct at the end of the Cretaceous period, around 66 million years ago. 

• Saber-toothed cats (like Smilodon): Extinct during the Late Pleistocene, around 10,000 years ago. 

• Giant ground sloths: Extinct during the Late Pleistocene, around 10,000 years ago. 

• Woolly mammoths: Extinct during the Late Pleistocene, with some populations persisting into the Holocene (10,000 years ago). 

• Irish elk: Extinct during the Late Pleistocene, around 10,000 years ago. 

Holocene (Last 10,000 Years)

• Dodo bird: Extinct in the late 17th century, around 1690. 

• Steller's sea cow: Extinct in the mid-18th century, around 1768. 

• Thylacine (Tasmanian tiger): Extinct in the early 20th century, around 1936. 

• Passenger pigeon: Extinct in the early 20th century, around 1914. 

• Baiji (Yangtze River dolphin): Extinct in the early 21st century, around 2006. 

• Great auk: Extinct in the mid-19th century, around 1852.