Dr Young-hae Chi, an instructor in Korean at Oxford University’s Oriental Institute has said the new species will save Earth from annihilation caused by climate change.
The professor said in 2012 the hybrids may already exist but has now written a book on the subject.
Oxford Student newspaper reported that he believes there is a strong correlation between climate change and alien abductions.
His book is written in Korean is called Alien Visitations and the End of Humanity.
Dr Chi says he has identified four types of aliens – small, tall and bold, scaly with snake eyes, and insect-like and believe the insect aliens may be in charge and give orders to the other types of aliens.
The aliens exist in their own bio-system that humans cannot experience because our perception is limited by our organs, the professor has claimed.
The species are said to be highly intelligent and the professor believes this means they could solve problems on Earth in the future, such as climate change.
Dr Chi said: “So, they come not for the sake of us, but for the sake of them, their survival, but their survival is actually our survival as well — the survival of the entire biosphere.”
Although said he is “still looking for more evidence to support my view”.
Dr Chi believes aliens appear on Earth when the planet is facing significant problems, such as climate change or nuclear war.
He concluded: “It may be more or less assumed that the hybrid project is a response to this impending demise of human civilisation.”