Question

Why is it said that there are many species that have yet to be discovered?

Answer 1

We have not explored everything

Step-by-step explanation:

We haven't explored about 95% of the ocean, and haven't been able to explore more land due to different tribes that may alert danger or we've never seen before

Answer 2

because us humans haven’t explored every inch of the world yet, especially in the deepest parts of the ocean