Music. A brown and black frog and a grey slow worm both fight over the earthworm worm for food. Reptile, pet, tank, terrarium. So I filmed a slow worm which is an awesome legless lizard chowing down on a massive earthworm, when a tiny common frog decided to have a go at fighting for it. Now, there was no chance of that worm fitting in the frog's mouth, but that didn't stop it, leading to me filming it tussling with the far-larger lizard over its meal.