OneZoom is a website that shows the common ancestry of extant (non extinct) species. For example if you wanted to know how closely related cats and dogs are to each other, and what species are most like them, then it can show you.

How many species are listed on OneZoom (onezoom.org) at the end of the year.

Now (2nd of June), 2,228,001 are listed.

…

Resolves Yes if more than 2,230,000

Resolves No if less then 2,220,000

Otherwise resolves N/A