Ferocious Planet

A parallel dimension discovered by Dr. Jillian O'Hara. Out of a vast and possibly infinite number of parallel dimensions, this one was selected for study due to being extremely similar to Earth in terms of environmental conditions. However, the animal life differs radically, and there is no intelligent life on the planet.

Physical aspects
This parallel Earth looks very similar to the original, but with pink skies and multiple natural satellites. The area visited appears like a temperate forest, but also contains quicksand pits and other geographical peculiarities. The atmosphere is breathable for humans and the vegetation is strikingly similar to Earth's as well.

Ecology
A type of large fungus was discovered, which Dr. Fast identified as "a giant Amanita muscaria", although she probably meant it figuratively (as in, a giant version of a regular Earth fungus) since the fungus in question looked nothing like an Amanita muscaria at all, and more closely resembled a bracket fungus of some sort.

The animal life of this dimension is notably distinct from Earth's. At least one species has been observed: a quadrupedal predator with three pairs of eyes, sharp teeth and mobile pedipalps which can be used to slash prey. It is oviparous and exhibits strong parental instincts to protect its nest. Its anatomy includes an internal organ filled with highly corrosive black acid, and its blood contains enormous quantities of ammonia.