Pierre Teilhard de Chardin, S.J., was a French Jesuit, Catholic priest, scientist, paleontologist, philosopher, mystic, and teacher. Teilhard de Chardin investigated the theory of evolution from a perspective influenced by Henri Bergson and Christian mysticism, writing multiple scientific and religious works on the subject. His mainstream scientific achievements include his palaeontological research in China, taking part in the discovery of the significant Peking Man fossils from the Zhoukoudian cave complex near Beijing. His more speculative ideas, sometimes criticized as pseudoscientific, have included a vitalist conception of the Omega Point. Along with Vladimir Vernadsky, he contributed to the development of the concept of the noosphere.