In genomic research, "K1" and "K2" are names given to draft genome sequences of Bacillus anthracis (anthrax) isolated from animal carcasses in Namibia.

An Atlantean adept in magic who can manipulate coral and spread a magical plague. His body is biologically adapted for the deep ocean, granting him superhuman strength, durability, and vision. Science and Biology

In the DC Universe, "Kadaver" is the name of two different villains:

A murderous criminal with a sadistic obsession with death and torture. He is known for using death-themed weapons like scythes and for his confrontation with Batman, which left him with a permanent burn scar.

The term is frequently used in the context of cadaver workshops where fresh-frozen specimens are used to train physicians in regional anesthesia and surgical techniques. Historical Context