Question

Is there any animal(s) that are unnecessary in the natural world a.k.a our planet, Earth?

Answer 1

When an animal becomes unnecessary natural section comes into play and removes the animal over time.

Step-by-step explanation:

Extinct animals

Answer 2

Answer: A lot of savanna animals.

Explanation: Giraffes, Rhinos, Ostriches. They're all here for no reason. But I strongly believe Mosquitoes are the most useless living thing on earth. They just cause pain.