Just in case your case of TGIF was getting too intense, we've got some heart-wrenchingly adorable illustrations depicting the cutest sad facts about animals.

The illustrations, by artist Brooke Barker, were created to convey some of the slightly more unusual, and slightly more depressing, facts about our favourite animals.

Barker's blog is filled with loads more interesting and quirky illustrated facts, each one seemingly cuter than the one before!

Picking six pieces of her work to showcase was near impossible.

So you can check out Barker's blog for yourself here.