HOME Card Choices Schools & Parks Contact Us Purchase

Bullfrog
Rana catesbeiana


Photo ©Patricia McQuade

Bullfrogs were brought to California in the 1920’s. Since then, they have taken over most of the ponds and marshes, crowding out native frogs like the Red-legged Frog. They are much bigger than other frogs. They eat anything they can swallow, including other frogs, fish and small rodents. Each spring, one female produces about 20,000 eggs.

The Bullfrog makes an impressive sound that you’ve probably heard. It bellows out in a loud, low voice, that sounds like aarooom!

Earth Cards
Nature Trading Cards

What are Earth Cards?

Trading cards?  Flash cards?  Game cards? Animal cards? Earth cards are all of these.

  • Collect them like baseball cards.
  • Play games with them like a game deck.
  • Use them as flash cards and species cards for learning. 
  • Trade them with your friends.

Order your set of
Nature Trading Cards

Box of 35 cards          $5.00
Box of 65 cards        $10.00
Box of 100 cards       $15.00

Purchase directly from this website with your check or PayPal.

You can customize your box of cards. Just go to Choose your cards and pick the species you want included.  
A box of Nature Trading Cards would be a nice gift for your child's classroom. You can also order them in quantities, at special prices, to use as fundraisers for your school. Schools