False, I'd say. Mammals usually adapt based on environment. Now, I know predators are "apart" of the environment, but I don't think that'd be it. I'd bet more money on saying mammals evolve based on environment adaptation. Sorry if I didn't answer your question or if I didn't get my point across well.
The answer you looking for is B. 50
Answer:
Humans are the most intelligent , commonly known as social animal
10 of the Most Intelligent Animals on Earth
Elephants. ...
African Grey Parrots. ...
Rats. ...
Crows. ...
Dogs. ...
Pigeons. ...
Pigs. According to some experts, pigs are among the smartest, cleanest domestic animals around – more so than cats and dogs. ...
Octopuses. Octopuses have the largest brains of any invertebrate.
#asiknow..