extinct animals

Across

1. A sea duck species from North America, extinct by the late 19th century.
5. A tiger subspecies from the Caspian region, extinct in the 20th century.
11. Also known as the Thylacine, a marsupial predator from Australia, extinct in the 20th century.
12. A subspecies of black rhinoceros declared extinct in 2011.
15. A small bird from Florida, last sighted in 1987.
17. Large, hairy elephant-like mammal from the Ice Age.
20. A genus of plesiosaur, a marine reptile from the Jurassic period, extinct by 145 million years ago.
24. A genus of prehistoric rhinoceros, extinct by 5 million years ago.
25. A small, flightless bird from Hawaii, extinct by the 1940s.
26. Large wild cattle, ancestors of domestic cows, extinct in the 17th century.
28. A wild horse native to Europe, extinct by the early 20th century.
29. Once the most numerous bird in North America, extinct by 1914.
32. One of the earliest known birds, lived during the Late Jurassic period.
33. A subspecies of zebra that had distinctive striping, extinct by the late 19th century.
36. A small kangaroo species from Australia, extinct by the early 20th century.
38. Large flightless birds from New Zealand, hunted to extinction by the Māori.
40. A large bird of prey from the North Pacific, related to the extinct Steller's Sea Cow.
41. Prehistoric predator known for its large, saber-shaped canine teeth.
43. Massive statues on Easter Island, named after an extinct bird species.
44. Once numbered in billions, this North American bird went extinct in 1914.
45. An ancient armored fish from the Devonian period, extinct by 358 million years ago.
46. The only native bear species of Africa, extinct by the 19th century.
48. A genus of extinct birds endemic to Hawaii, with the last species going extinct in the 20th century.
49. A tiger subspecies from Bali, extinct by the 20th century.
50. A large, furry rhinoceros from the Ice Age, closely related to the modern rhinoceros.

Down

2. A large prehistoric canine from North America, extinct by the end of the Ice Age.
3. A giant eagle from New Zealand, known to prey on moas, extinct by 1400s.
4. A marine mammal related to minks, once found in North America, extinct by the late 19th century.
6. A large woodpecker species from the southern United States, likely extinct.
7. A genus of giant, flightless birds from prehistoric South America, extinct around 2 million years ago.
8. An enormous prehistoric shark, extinct around 3.6 million years ago.
9. A large prehistoric feline from North America, extinct by the end of the Pleistocene.
10. A prehistoric fish known for its armored head, extinct by 358 million years ago.
13. A genus of flightless sea ducks from North America, extinct around 2,400 years ago.
14. A genus of giant ground sloths from the Americas, extinct after the Ice Age.
16. The only native parrot species in the eastern United States, extinct by 1939.
18. A species of newt from China, extinct by the 1970s.
19. The species of Lonesome George, the last of his kind, extinct in 2012.
21. A subspecies of the Spanish ibex, last individual died in 2000.
22. The last macaw species from Cuba, extinct by the late 19th century.
23. A large, flightless bird once found in the North Atlantic, extinct by 1844.
27. A subspecies of the gray wolf from Japan, extinct by the late 19th century.
30. An enormous deer with vast antlers, extinct after the Ice Age.
31. A type of antelope once found in South Africa, extinct by the 1800s.
34. A flightless bird from Mauritius, extinct by the late 17th century.
35. Also known as the Tasmanian Tiger, a marsupial predator from Tasmania.
37. A giant flightless bird from Madagascar, extinct by the 17th century.
39. A large marine mammal related to manatees, extinct by 1768.
42. A large bear species that lived in Europe during the Ice Age, extinct by the end of the Pleistocene.
47. A freshwater dolphin from China's Yangtze River, declared functionally extinct in 2006.