Walter is an interdisciplinary scientist, philosopher & writer focusing on biology, minds & ethics. He publishes the ‘Science and Philosophy‘ series on Psychology Today and Medium.

Walter is an interdisciplinary scientist, philosopher & writer focusing on biology, minds & ethics. He publishes the ‘Science and Philosophy‘ series on Psychology Today and Medium.
Marc is professor emeritus of Ecology & Evolutionary Biology at the University of Colorado, Boulder. He has published 31 books, won many awards for his research on animal behavior, animal emotions, compassionate conservation, & animal protection, has worked closely with Jane Goodall, & is a former Guggenheim Fellow.