As I like to point out, we get a lot of new species every year. Most are tiny invertebrates you wouldn't notice even if you stepped on them (especially since you would be on the bottom of the ocean and therefore drowning), but the mammals, birds, sharks, etc. keep coming too.
A Field Museum expedition to a white-sands forest - an environment I didn't know existed - came up with three new plants, four frogs, four fish, and a titi monkey of striking coppery appearance made of which one scientist said, "none of the experts... have seen this coloration before, and there isn't anything like it in the Museum."
Never stop exploring!