13 ways to save the Earth from declining biodiversity

See how you can make a difference, then scroll down to pledge to help animals.

Photo credits: Arun Roisri, Dreamstime (elephants); Marcia Straub, Getty Images (wolf); Ernita, Shutterstock (hedgehog); Zorandim, Dreamstime (plants); iliuta goean, Shutterstock (fish); sjallenphotography, Getty Images (cat)