Cheetahtrout art

Pterodaustro guinazui

The full playlist https://youtube.com/playlist?list=PLXj3myF_UErB9Jct4WZ8NGQUkWqfm6mm8

Shikamaia akasakaensis was a giant bivalve that lived during the mid-Permian (~274-267 million years ago), in the shallow tropical waters of a carbonate platform atop an oceanic seamount in the region of what is now Japan.

It had a long flat shell up to about 1m (3'3") long, with a raised triangular hump at the front and wing-like flanges at the sides — a shape that helped to spread out its weight on the soft seafloor sediment.

Its shell was once thought to have been translucent, allowing it to host symbiotic photosynthetic algae inside its body tissues and providing it with the extra sustenance needed to grow to such a huge size. However, more recent studies suggest its shell was actually opaque to sunlight, so instead it may have hosted chemosynthetic bacteria similar to some modern clams.

…Or, considering that it shared its habitat with some other big invertebrates such as a large species of the marine snail Euconospira and a giant crinoid, Shikamaia could simply have been living in such an incredibly food-rich environment that it was able to attain gigantic sizes purely from normal filter-feeding.

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deathly curious how good the average tumblr user is at distinguishing dinosaur skulls from non dinosaur skulls

Showing off the Arapaima I made! (Pattern also made by me)

Fantastic article!! The guys looking for it were fish researchers who saw it one time, knew instantly it was an undescribed species, and then tried for nearly 20 years to find and document it!

It's a type of ghost pipefish, related to seahorses, and it floats around coral reefs looking like a piece of algae and hunting unsuspecting prey

They are, of course, named after Snuffleupagus from Sesame Street!

Later on it the project, they got citizen science involved, and people across the Pacific started reporting sightings of snuffy fish from all over!

Here it is, the poster for World Eel Day 2026! It's time again to celebrate eels of all sorts in any way you can!

Oh? "How do I part-eel-cipate?" you ask? Well, from the eel man himself:

"There are lots of ways to get involved with World Eel Day. Your eel inspired activities, photos, resources, art, outcomes, thoughts or messages can be shared online on all social media platforms with the hashtags #WorldEelDay2026 #WorldEelDay

For example, you could organise an eel event , draw or make an eel or write a story or a poem. Remember to tag or collaborate with @eelsuitcase on instagram"