Question

how are small animals more endengered from bigger ones

Answer 1

this is because the small animals are not able to protect themselves from any threat where as large animals can and hence they are getting endangered.

Answer 2

We can say that small animals are most endangered these days than the big animals because :

1. They are small and hence, have no so strength to fight.

2. They have not so developed bodu organisation which can help them to change as per the changing environment.