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MLA Full: "World's Smallest Animals." YouTube, uploaded by vlogbrothers, 18 February 2012,
MLA Inline: (vlogbrothers, 2012)
APA Full: vlogbrothers. (2012, February 18). World's Smallest Animals [Video]. YouTube.
APA Inline: (vlogbrothers, 2012)
Chicago Full: vlogbrothers, "World's Smallest Animals.", February 18, 2012, YouTube, 03:24,

In which Hank talks about the smallest animals in the world in a variety of categorizes, moving from vertebrates to reptiles to amphibians to fish to birds to mammals to primates to dogs to horses to cats.

Featured Animals!
Tiny Tardigrades:
Tiny Chameleon:
Dwarf Gecko:
Tiny Frog (the smallest vertebrate):
The Anglerfish:
Bee Hummingbird:
Kitti's Hog-Nosed Bat:
Etruscan Shrew:
Madame Berthe's Mouse Lemur:
Ducky the Dog:
Thumbelina the Horse:
Mr Peebles:

Thanks to this guy for the karaoke track:


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A Bunny
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Hank: Good morning, John, a couple of warnings about this video, first, if you find cuteness offensive, you should probably leave now. Also, if you are prone to squee, take the necessary precautions. Today's video is about the tiniest things. I'm doing this, of course, because the world's smallest chameleon was recently discovered in Madagascar, and it is very tiny. And I'm also doing it because the episode of SciShow that we did on Tardigrades went really, really well. Honey badger don't care? Really? Maybe shove honey badger out of an airlock into the vacuum of space and see if he cares then, tardigrade don't care. DUN DUN DUN DUN, TARDIGRADES. This little guy, while being very very tiny, is not the smallest reptile. That honor goes to the virgin island dwarf gecko. Pictured here, full grown, on a dime. The virgin island dwarf gecko does not, however, take the prize for smallest vertebrate, that either goes to a frog or a fish, depending on which side of the controversy you're on. It makes sense that the smallest vertebrate would be water-dwelling, because they do not have to deal with the pressure of gravity as much because they get to be underwater. Now I will tell you the name of this frog, but I can't pronounce it, here it is pictured on a dime, apparently that's the thing to do, unless you're the world's smallest snake, in which case, you're so massive that you have to be pictured on a quarter. For the people who aren't American, this is a dime, it's our smallest coin, even though it's worth more than pennies and nickels, and this is a quarter, so that's how big those animals are. But even smaller than that frog is a fish. A fish that we Nerdfighters know a little bit about but I did not know that it was the smallest vertebrate, the male anglerfish! Though, most biologists don't count it because it relies on sexual parasitism to survive. But whatever, I'm on the anglerfish side of that debate, I'm on the anglerfish side of every debate! Okay, I'm going to admit that so far, this hasn't been particularly cute, but we're gonna change that around by now going to smallest warm-blooded animals. And the smallest warm-blooded creature is the bee hummingbird and (unintelligible noises). The smallest mammal, however, harder to determine, by length, the smallest mammal is Kitti's hog-nosed bat, which I think is adorable, and by mass, the Etruscan shrew is the smallest mammal, so I'm gonna go with the Etruscan shrew, 'cause mass seems like the one you wanna go with there, and oh my God, is he cute. There was, however, once upon a time, a smaller mammal: the long-extinct Batodonoides vanhouteni, a kind of shrew, which I only mention because of the van Houten. And finally, our last wild animal, the world's smallest primate, Madam Berthe's mouse lemur. It weighs just over an ounce and it is so squishy (unintelligible noises) shut up! And then we have a selection of domestic animals. Ducky, at one point four pounds, the current smallest dog. Thumbelina, a miniature horse that turned out to be way more miniature than any other miniature horse at just 17 inches tall, which does not sound healthy. And we're finishing off on Mr. Peebles, hello, Mr. Peebles. Mr. Peebles is my favorite animal of this video because it led me to the Google search of 'cat in a cup', where I found so many cats in cups! (music plays: "It's a cat in a cup, it's a cat in a cup, girl, it's a cat in a cup, oh yeah, it's a cat in a cup") John, I'll see you on Tuesday. Endscreen: Oh, did you say that you want a No Edge shirt? Oh, well, I can do that for you, I made a No Edge design, it's like my face and then like (makes face). It's available now for pre-order at