It will become extinct
They may not be able to adapt and die or they may be able to change and live.
If an animal couldn't adapt then the animal would die. The importance of adaptation is that the animal change its body conditions to adjust to the present condition that is facing so that it can survive.
Sexually-reproducing species are able to adapt more easily than asexual-reproduciing species
it will become extinct. NOVANET
New species will not be able to present themselves.
they will not be able to survive and will eventually die, if you are asking "What happens if dolphins cannot adapt"
A species that lacks genetic variation but can still adapt to a changing environment is the Antarctic icefish. This species has limited genetic diversity, but it has unique physiological adaptations that allow it to survive in the extreme cold conditions of the Antarctic waters.
There are no living organisms that do not adapt - it is a vital function of a living organism and one of the definitions used to classify a discovery as living or not. However, there are some animals that are less able to adapt than others.
If the animal species is given a very long time to adapt to a slowly changing environment, then the answer is probably yes. But, taking the sloth, koala and the giant panda, all with very specialised and exclusive diets, it is difficult to see these species ever being able to adapt - unless the changes were over several centuries.
Species that lack a diverse gene pool are less able to adapt to changes in the environment and are less able to survive diseases.
Probably some of them (example:crocodile). The crocodile is a modern species of what use to be a prehistoric creature. The species would adapt based on the environment due to natural selection. just to expand on that the croc has remained unchanged since the time of the dinosaurs,
-Result in some living things not being able to adapt to these changes which will hasten species extinction lots will happen