Atavism Super Evolution is a Manga/Manhwa/Manhua in english language, Ability series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The fall of a mysterious seed has brought the entire earth into an era where all creatures are eligible to compete for the top of the food chain. Yue Li, the head of the special forces, lost the most important person in his life in the disaster. After fighting monsters for three years, he became a member of the monster because of an accident. With a dual identity, can he become the top of the food chain in this disaster?