The enzyme catalase is one of the many enzymes present in the peroxisomes

Peroxisomes are cytoplasmic organelles that play a central role in the catabolism of… Peroxisomes contain enzymes that oxidize certain molecules normally found in the cell, notably fatty acids and amino acids. Those oxidation reactions producehydrogen peroxide, which is the basis of the name peroxisome.

Predator instincts is what causes it