The article presents a list of the top 10 extinct animals that should not be brought back to life. These prehistoric creatures are considered unworthy of resurrection due to their massive size, powerful build, or deadly characteristics.
1. Meganeura: A massive dragonfly with a 75cm wingspan that thrived in an atmosphere with 35% oxygen.
2. Josephoartigasia monesi: A giant guinea pig that weighed around 700kg and stood 1.5m tall.
3. Dunkleosteus: An armored fish with a powerful bite that could crush metal and bite through a person's hand.
4. Helicoprion: A 12m-long sea creature with a spiral set of teeth that could cut through its prey like a circular saw.
5. Sarcosuchus: A massive prehistoric crocodile that could reach 13m in length and ate turtles, dinosaurs, and other predators.
6. Gigantopithecus: A giant primate that stood 3.5m tall and weighed over 500kg, making it one of the largest known primates.
7. Megapiranha: A large piranha that could reach 75cm in length and had a powerful bite force of 1385N.
8. Giant short-faced bear: A massive bear that could weigh up to 1800kg and reach speeds of 60km/h.
9. Titanoboa: A massive snake that could reach 12-14m in length and weigh over 1.25 tons.
10. Megalodon: A massive shark that could reach 16-18m in length and weigh over 70 tons, making it the largest predator to have ever existed.
These creatures are considered unworthy of resurrection due to their massive size, powerful build, or deadly characteristics, making them unsuitable for coexistence with modern humans.
Here are the key facts extracted from the text:
1. Scientists have a list of extinct species that could be resurrected, including the woolly mammoth, dodo, mastodon, and Tasmanian tiger.
2. The selection of species for resurrection is based on criteria such as ecological function, access to tissues with good DNA samples, adaptability to the modern world, and desirability.
3. Meganeura was a prehistoric dragonfly that lived 300 million years ago and had a wingspan of up to 75 centimeters.
4. Meganeura lived in an atmosphere with 35% oxygen, compared to 21% today.
5. The high oxygen content in the atmosphere helped maintain the large body of Meganeura.
6. Meganeura was carnivorous and its diet consisted of insects, invertebrates, and small amphibians.
7. Fabriornis patersoni was a prehistoric guinea pig that lived 8 million years ago and weighed around 700 kilograms.
8. Fabriornis patersoni was a herbivore and its diet consisted of aquatic plants.
9. Dunkleosteus was a prehistoric armored fish that lived 380-360 million years ago and was up to 11 meters in length.
10. Dunkleosteus had a powerful bite force comparable to that of a tyrannosaurus or modern crocodile.
11. Helicoprion was a prehistoric sea animal that lived 290 million years ago and was up to 12 meters in length.
12. Helicoprion had a unique dental spiral consisting of 15-18 sawtooth teeth.
13. Helicoprion was a carnivore and its diet likely consisted of other fish and sea animals.
14. Dakosaurus was a prehistoric crocodile that lived 82 million years ago and was up to 13 meters in length.
15. Dakosaurus was an omnivorous predator and its diet likely consisted of sea turtles, dinosaurs, and other animals.
16. Gigantopithecus was a prehistoric primate that lived 2.6 million to 11,700 years ago and was up to 3.5 meters in height.
17. Gigantopithecus was a relative of orangutans and its diet likely consisted of vegetation, including bamboo.
18. Megapiranha was a prehistoric fish that lived 6-10 million years ago and was up to 75 centimeters in length.
19. Megapiranha had a powerful bite force and its diet likely consisted of other fish and sea animals.
20. Arctodus simus was a prehistoric bear that lived 500,000 to 2 million years ago and was up to 3.6 meters in height.
21. Arctodus simus was a carnivore and its diet likely consisted of other animals, including mammoths and bison.
22. Titanoboa was a prehistoric snake that lived 56 million years ago and was up to 12-14 meters in length.
23. Titanoboa was a carnivore and its diet likely consisted of other animals, including crocodiles and fish.
24. Megalodon was a prehistoric shark that lived 2.6 million years ago and was up to 16-18 meters in length.
25. Megalodon had a powerful bite force and its diet likely consisted of other marine animals, including whales and sea cows.