Bullsquid

Bullsquid are strange carnivorous organisms that are dispersed throughout the Black Mesa Facility of the original Half-Life. They are commonly found in sewers, shallow artificial lagoons of the Xen homeworld, and even in toxic radioactive, chemical or biological wastes. Bullsquid manifest in the shape of some kind of sauropod, with two muscular dinosaur-like legs ending in two toes, and a thick tail, that allows it to swim, narrows down to its tip. Its colour scheme is comparable to that of a big spotted cat. It's hued a sandy brown. The bullsquid's skin appears to be slimy and viscous, like that of an amphibian. It has two white eyes mounted on each side of the head, looking in a 45- to a 90-degree angle. Its most striking feature, however, is its red, squid-like, tenticular protrusions which allow it to grasp or hit its prey with tremendous force, hence the creature's name. It possesses a ferocious appetite, as well as a fanatical libido. Thus, the bullsquid will attempt to eat and mate with anything it comes across, even though it is apparently hermaphroditic. Such behaviour has been observed among pairs of bullsquid. During each sexual encounter, there is an interlocking of tentacles, and an exchange of green phlegm that appears to contain spermatozoa. One creature will die due to its neurotoxic and reportedly psychoactive chemical contents, making it lethal to terrestrial mammal entities.