Kryonian tiger

From Memory Alpha, the free Star Trek reference

The Kryonian tiger is a large, threatening predator that was endangered by the late 24th century. Alexander Rozhenko and Worf saw a Kryonian tiger on the protected planet of Brentalia in 2368. Alexander did not find the tiger particularly scary after it licked his hand, and he remarked that it "smelled funny". (TNG: "Imaginary Friend")