Malus sieversii in harsh climates unsuitable for "M. pumila", mainly for increased cold tolerance. "Malus sieversii" has recently been cultivated by the United States Agricultural Research Service, in hopes of finding genetic information of value in the breeding of the modern apple plant. Some, but not all, of the resulting trees show unusual disease resistance. The variation in their response to disease on an individual basis is, itself, a sign of how much more genetically diverse they are than their domesticated descendants. Malus sieversii Malus sieversii is a wild apple native to the mountains of Central Asia in southern Kazakhstan. It has
Karl Malus the Mexican border. The experiments he performed on them turned them into animal hybrids. When Captain America tracked his operations down, Karl Malus used his symbiotic abilities to subdue Captain America and experiment on him which turned Captain America into a werewolf. Using Redwing's DNA, Karl Malus turned a Mexican teenager named Joaquin Torres into a bird/human hybrid. Upon being liberated by Misty Knight, Captain America followed and subdued Karl Malus by using Redwing's high-pitched sounds on him and remanded him to S.H.I.E.L.D. custody. While Captain America and the others that were experimented upon by Karl Malus were restored to