For evidence, the world today seems to be worse than it was in the past 70 years where crocs and alligators were virtualy depleted or wiped out from their natural habitats. Aphids Myrmecophilous (ant-loving) caterpillars of the family Lycaenidae (e.g., blues, coppers, or hairstreaks) are herded by the ants, led to feeding areas in the daytime, and brought inside the ants' nest at night. Nineteen of the world's most critically endangered crocodiles were released Thursday into the wild in the Philippines as part of efforts to save the species from extinction, conservationists said. Why Did Crocodiles Survive the K/T Extinction? Alligators and Crocodiles. ... when numerous mammal, reptile, and bird species have gone extinct or are seriously endangered, alligators and crocodiles around the world continue to thrive (except for those targeted by shoe-leather makers). Watering holes in certain parts of the world would become marginally safer. What would happen if alligators were extinct? They even have a list of candidates, which includes the … ... How Does Extinction Happen? If alligators and crocs went extinct, the world would have been a better place. Nineteen of the world's most critically endangered crocodiles were released Thursday into the wild in the Philippines as part of efforts to save the species from extinction, conservationists said. 1 The Giant Sloth. 10 Most Dangerous Animals Who Are Now Completely Extinct Now a day, man seems to be the most dangerous animals of all but there was a time when the earth was filled with some of the most terrifying animals. Learn more about Threatened and Endangered Species. ... For reptile, it includes lizards, snakes, turtles and crocodiles. If alligators and crocs went extinct, the world would have been a better place. It’s certainly a fanciful notion, but not altogether impossible, after all if an alien visited Earth in the aftermath of the K/T (Cretaceous/Tertiary) extinction could they have foreseen the evolution of humans from small tiny mammals that mostly resembled modern shrews? Since Ants associate with a wide range of species like fungi and other insects, they might also go extinct. Share Flipboard Email Print ... threatening their survival and increasing numbers of insects like mosquitos that the songbirds were meant to control. If crocodiles went extinct the food they presently eat would be used by whatever animal they presently compete with for that food. Why Protect Endangered and Threatened Species? Why It Matters When Species Go Extinct Animal extinction can effect entire ecosystems and in turn the world. What would happen if snakes were to become extinct? ... 10 Most Dangerous Animals Who Are Now Completely Extinct. In the past, lots of American crocodiles were killed so that their skins could be made into shoes and other clothing. Nineteen of the world's most critically endangered crocodiles were released Thursday into the wild in the Philippines as part of efforts to save the species from extinction, conservationists said. For evidence, the world today seems to be worse than it was in the past 70 years where crocs and alligators were virtualy depleted or wiped out from their natural habitats. This crocodile is now an endangered species. They were never extinct, but they were almost; in the 19th century and early 20th century, they almost died out completely, but then it was declared illegal to hunt them down in America. Crocs are not dinosaurs, and I am not sure where you got the ‘survivor from the Jurassic’ bit from either, the species is only 4 million years old. If the snake went extinct, there'll only be 3 reptiles left. Wiki User May 21, 2012 5:47PM. If the dinosaurs had never died out, then could one of them have possibly evolved sentient like intelligence similar to us? Share Flipboard Email Print ... Crocodiles Were Smarter Than Dinosaurs . Nineteen of the world's most critically endangered crocodiles were released Thursday into the wild in the Philippines as part of efforts to save the species from extinction, conservationists said.