When you know the name of something and want to find out more about it, use the drop-down menu to find it. Or look in search. Simple and easy.
But what happens when you have seen something but don’t know what it is, say it’s a bird of prey, but you don’t know what kind. You can hover over the animal’s link in the top menu until you see the birds link, move down and hover on birds until you see the types of birds, move over and click on birds of prey. This opens up a page with images and a short bit of info, scroll down until you hopefully find your bird, then click read more.
This works in all sections of the site on both desktop and cell, only with a cell phone, it requires just a click.