What are the problems faced by extinct species for survival?

You mean “what were the problems …..?” Right. That would be different for different species. Take the example of Dodo. This flightless bird evolved in an island free from any significant predator. Thus it never developed sense of fear. read more

Habitat loss is the main reason for extinction of endemic species. Take the examples of Madhuca insignis (Karnataka), Cynometra beddomei (Kerala), Sterculia khasiana (Meghalaya). All these endemic plants of India became extinct due to habitat loss in recent past; a small population of Madhuca insignis has recently been discovered in Dakshin Kannada district of Karnataka. read more

Problem: Extinction of Plant and Animal Species. Massive extinctions have occurred five times during the earth's history, the last one was the extinction of the dinosaurs, 65 million years ago. Scientists are calling what is occurring now, the sixth mass extinction. The loss of species is about losing the very web of life on Earth. read more

TIGERS IN CRISIS: THE PROBLEMS. In order to live in the wild, tigers need water to drink, animals to hunt, and vegetation in which to hide. As the mountains, jungles, forests, and long grasses that have long been home to tigers disappear, so, too, do tigers. read more