TIt's very hard to say if there will be animals in the future. There is a massive increase of endangered species today, more then there has been in all recorded history. You cannot watch any animal documentary without hearing about an endangered species. Pollution, poachers, and land deforestation are the major causes of this. It could be as little as thirty years before certain species are wiped out of existence.
The human population is growing at an alarming rate which is another reason this is occuring. For example within the Amazon hundreds of square miles are being cut annually. Regrowing natural habitats are not that successful. This brought to my attention that the mining and lumber industry do a great deal of harm by recourse extraction. An example of repopulation of endangered species are in zoos.
