What are the most dangerous species? And why plzzz help i have speaking

Humans are most likely the most dangerous animal/species. We contaminate and we destroy. 97% of human history has been destroying forests, animal homes, hunting them for their hide, torturing and killing each other, polluting the oceans, polluting space with rocket removals, destroying life itself. Humans are 100% the most dangerous species ever. We have created death itself, and concepts of "righteous" acts, such as execution and neutralization.  

what is a theme?

ans: the implicit idea of a written work of literature is called a theme.

so, the only theme of "birdfoot's grampa" by joseph bruchuc is that as a human being one should always remember the value of every life on earth.

the grampa is stopping the car again and again to save those little toads from washing away in the heavy rain is an act of kindness and humanity.