Some of the earliest complex organisms on Earth – possibly some of the earliest animals to exist – got big not to compete for food, but to spread their offspring as far as possible.
Science doesn't work the same for everyone everywhere - there are huge disparities in access to scientific hardware, and in gender and minority representation in labs. In this piece from The Conversation, Jenny Molloy (Department of Earth Sciences) and Max Liboiron (Memorial University of Newfoundland) look at some of the initiatives around the world which are attempting to level the playing field for scientists.