The early Labyrinthodonts were mostly aquatic carnivores, hunting in shallow water along tidal shores or weed-filled tidal channels. It’s theorized that after initially feeding solely on washed-up carrion, they turned into predators of the large Devonian invertebrates. Short-legged and large-headed, some reached up to four meters long. Primitive members of all Labyrinthodont groups were probably true water predators, while advanced forms arose independently in different groups and times—adopting an amphibious way of life and bearing reduced limbs and elongated, eel-like body.