What does vary between species mean?

"Vary between species" refers to the differences or variations in characteristics, traits, or attributes that exist among different species. It implies that there is diversity and variability in certain aspects when comparing different species. These variations can be observed in various aspects, such as physical features, behaviors, adaptations, genetic compositions, or ecological roles.

When multiple species are taken into consideration, variations between them can be seen in various forms, highlighting their distinctiveness. These variations can range from subtle differences to significant disparities. Understanding the variation between species is crucial for studying biodiversity, evolutionary biology, comparative biology, and for gaining insights into the complexity of life on Earth.