The Xerces Blue butterfly was last seen in either 1941 or 1943.
They haven't.
Are you sure this is the right question you wanted to ask? Human to help Blue Whales go extinct? Or to prevent them from being extinct?
Currently, the monarch butterfly is experiencing some habitat loss and may be affected by climate change. However, they are not evaluated by the endangered species list. I would say it's unlikely they will go extinct at all, since they could be raised in captivity.
then there would only be blue pandas no their would only be giant pandas and they would go extinct right after red pandas.
Go Diego Go - 2005 Alicia Saves the Crocodile 2-19 was released on: USA: 30 October 2007
Why did the dinosaurs go extinct? Humans will never go extinct!
Missouri is a state - it is not a living thing so it cannot go extinct.
they are not extinct yet.
They are not extinct...
Tree weeks.
The life cycle of the butterfly is quite fascinating, They go from egg, to caterpillar, to chrysalis, to butterfly. The time it takes to go from stage to stage depends on the type of butterfly.
It has NEVER been extinct.