Megasquid

The Megasquid is a large, omnivorous terasquidfrom the Northern Forest of 200 million AD in the documentary The Future is Wild. It is the biggest of the Terasquids, as well as the biggest land animal of the time.

Larger and more massive than any living land animal (5 meters high and 8 tons in weight), a Megasquid can be seen pushing its way through the soaking vegetation, splintering conifer trunks and pulping the branches of lichen trees as it goes. Air passing through its body causes internal membranes (the megasquid's equivalent of vocal cords) to vibrate and amplify any sound it produced. The sound is amplified by means of a balloon-like sac on the terasquid's forehead which expands and vibrates like with the vocal sac of a frog. As it moves through the forest, the megasquid stakes its territory by bellowing out signals through the drumming rain.