This has already been asked on wikianswers but under the name of 'Animals beginning with Y'.
There you will find many animals but if you only want ONE then:
Yak
The yellow swallowtail butterfly and a Yak
Yellow banded poison frogs live in the tropical rainforest. They begin with the letter y.
Yellow-nosed Albatross, Yellow Baboon, Yellow-backed Duiker and Yellow-billed Stork are animals in Africa. They begin with Y.
Exercises that begin with the letter Y include:Yoga
The yolk of an egg and yams are foods. They begin with the letter y.
Well there are many things that begin with y ( to name a few) yellow yotch
some compliments that begin with Y Are you are beautiful,you make me smile , you are the best , you can do anything.
As far as we know, there are no synonyms for amazing that begin with the letter Y.
Yes and yummy are good word. They begin with the letter y.
There are no known volcanoes that begin with the letter Y.
The only marina animal I could find was the Yellow Tang. and the Yellow Finger Spongeand the yellowtail amberjack
There are no cities in Australia that begin with Y. There are towns in Australia that begin with Y. Yass and Young are towns in New South Wales, Australia. Yuendumu is a town in the Northern Territory of Australia.