Looks like a number of emoji will redirect you to the proper Wikipedia page:
https://en.wikipedia.org/wiki/🐘
https://en.wikipedia.org/wiki/🐕
https://en.wikipedia.org/wiki/🐘
https://en.wikipedia.org/wiki/🐕
I'm pretty sure every Unicode character will (unless somebody missed any). There are Unicode character charts on Wikipedia too, and they're fully linkified, e.g. https://en.wikipedia.org/wiki/Arrows_(Unicode_block)