Zoo

Violent animal attacks upon humans are occurring all over the world. Jackson Oz, an American zoologist who offers safaris in Africa, begins to notice the animals' strange behavior and takes it upon himself to solve the reason why before these attacks become more coordinated and ferocious.

This show has 3 seasons already. The second season is my favorite. It's based on the book " Zoo " by James Patterson.
It's a cool show because you will see a lot of animals mutations. It's filmed in more than 1 country.
The characters are good. My favorites are Mitch Morgan, a veterinary Pathologist & professor at UCLA and Jamie Campbell, a journalist.
I wasn't interested a lot in the show when I started it because it was a bit slow. I'm glad that I didn't stop it and gave it a chance because later on it turned good. It has some good plot twists especially in the last scene of season 2 and some scenes in season 3.
So what I'm trying to say is don't give up from the first few episodes just give it a chance because you might end up liking it.
I hope they will renew it for a fourth season so we can see how they will cure these mutations.
Here's a trailer for season one :