Hi, I'm Andrew and I’m just a simple 19 year old guy and zoology student that posts random factoids about obscure animals and general animal science/zoology/biology stuff so if you like animals this is the place for you, if you only like cute animals this is not the place for you… Also I can ID any animals you might need identified (just submit them to me).
Disclamer: none of the pictures are mine unless stated
Family Polioptilidae: A family of passerine birds commonly known as "Gnatcatchers". All gnatcatchers are native to the New World, being found in both North and South America. Gnatcatchers are close relatives of the wrens and some species are known as "Gnatwrens".
Thats a good question! I’m not sure if there is a straight answer for that. The smallest vertebrate in the world is Paedophryne amauensis a species of Microhylid frog. Since most people equate animal with vertebrate they usually stop there. But as you probably guessed most inveterate are alot smaller than P. amaeuensia. Which is where it gets blurry. I know the smallest arthropod is a Maxillopod known as Stygotantulus stocki. Which is super small at 94 µm. I’m certain that there are other inverts which are even smaller though. Like certain Rotifers can only get to around 50µm. And i’m sure there are probably some animals that can get even smaller than that.
EDIT: There are animals that are smaller! Some Myxosporean Myxozoans, a group of cnidarian parasites, average at sizes around 10µm-20µm!!