One of the coolest green apps is the newly released Wild Calls by the Center for Biological Diversity (CBD). Every week, app users can receive a "call of the wild" from one of 30 endangered animals recorded in the field by the scientists who study them.

The animal calls can be permanently downloaded to your phone, along with a wallpaper photo of the wild beast, and you can use them as ringtones, assigning your friends with their own wild ringtone. 

The app, created by LA based Mobile Culture Lab, is intended to drive awareness about endangered species and to encourage users to sign up for Endangered Earth, an online publication from the CBD about the latest news on wildlife conservation and biodiversty.

In additional to the educational goals of the app, Peter Galvin of the Center for Biological Diversity wants to bring a little bit of nature into the city: “We’re excited to help bring authentic sounds of nature to offices, subways, stores, and other urban locations through iPhones across the country.”

Here are some of the wild calls available on the app:

  • Mexican wolf
  • Orca
  • Beluga
  • Bobcat
  • African elephant
  • Elk
  • Grizzly bear
  • Humpback whale
  • Bald eagle
  • Polar bear
  • Blue-throated macaw
  • Whooping crane
  • Yosemite toad
  • Pine Barrens treefrog
  • Crawfish frog
  • Great Basin rattlesnake
  • Florida panther
  • Giant panda
  • Puerto Rican screech owl
  • Peruvian plantcutter
  • Emperor penguin chick
  • Boreal owl
  • Fringe-backed fire-eye
  • Red poison dart frog
  • Coquí guajón rock frog
  • Barred owl
  • Common loon
  • Barn owl
  • Coyotes
  • Eastern screech owl


Call of the Wild now delivered to iPhone

Call of the wild now delivered to iPhones
Authentic sounds of the wild can now be downloaded for free to your iPhone. Assign your friends their own unique howl, hoot or roar.