The African Bullfrog (Pyxicephalus adspersus) is the biggest in Africa and noted for his aggressiveness. He's big and tough, but a complete sweetheart when it comes to caring for his kids.
In this video from the TV series Nature, his tadpoles grow up in a puddle next to a pond. The sun is drying up the puddle, placing his kids in mortal peril. So he digs a channel from the puddle to the main pond, providing them a means of escape.
-via Gifsboom
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