Which scientist did malthus influence with his theories

Going to say like my teacher told me Thomas Malthus and Charles like two figures who influence Darwins theory’s influence through his book on the population principal Darwin had a parallel thinking in the concept of individual struggle and natural selection

ex) 1 plants we depend on plants to eliminate carbon dioxide and produce oxygen

ex) 2 many people with disabilities,emotional problems and more depend on a service animal to help them live daily life safely and keep them calm