boh.

The Blobfish! The grumpiest blob in the ocean. He reminds me of the Groke from the Moomin stories, on a particularly gelatinous day.

why you... *shakes fist*

This hat has heard one too many Finding Nemo jokes - as you can see he's shaking a fin-fist in the back. Made by Christine Grant.

phuket.

One bug-eyed grumpy fish in a permanent state of huff, taken by Emblita. Her picture of a seahorse is also amazingly beautiful.

HMRRR.

This is Colin the Grumpy Carp. Here's kid's story that goes along with the illustration of how he got his grump.

hmmm

O Daniel-san, you disappoint me. Paint another six fences before breakfast and we shall see what you have learned.

Photo taken by Tom Fisher2, who seems to travel the world taking beautiful pictures. This may be one of my favorites.

snurg.

Photo taken by 100%hydrophylic