Sahadeva

Whoever knows me, yes, it's me.

[spineless-chordate]

Jormungandr walhallaensis and other Western Interior Seaway denizens

Jormungandr walhallensis with Pentanogmius, Didymoceras, and ichthyornis (also barnacles and a school of plankton).

[joakinmar]

Purgatorius and Tyrannosaurus by Bush Viper 165.

[firenadia]

Quick ichie collab

[spineless-chordate]

Mating Ocepechelon

Pipe-mouthed sea turte, pipette turtle, jelly vacuum cleaner

[spineless-chordate]

God gives his toughest battle to his silliest clown

Ngebadut

[sillygutzartz]

she is so silly <3

[spineless-chordate]

Kelenken

[onenicebugperday]

Idioctis parilarilao: A new species of Intertidal Trapdoor Spider from Taiwan

One of only a few species of spiders known to live in marine intertidal zones

Info and images via: Yu et al, Journal of Arachnology on 6 October 2023

[bunjywunjy]

What is the most cursed plant fact you know of?

the manchineel tree is so all-around toxic that even standing under it while it's raining is enough to give you severe chemical burns!

actually eating any part of it will absolutely kill you, and it will hurt so so bad the whole time you're dying.

[spineless-chordate]

I FOUND THE POST

[berensreverie]

Paleo art inspired by Minoan frescoes

[knuppitalism-with-ue]

Results from the #paleostream

Pseudodontornis, Octamerella, Garumbatitan and Trilophosuchus

[knuppitalism-with-ue]

Results from the #paleostream

Huracan, Mandaloceras (that's a cephalopod), Megalancosaurus and Melanerpes shawi.

[todaysbird]

im. im sorry. the Who

[gr3y-heron]

oh hey I wonder why they're called demon ducks maybe I'll just look them up and-

ah right okay

[wtf-scientific-papers]

Golding et al. (2023)

[zinderant]

I didn't realize this was wtf-scientific-papers and I thought this was just a tumblr original. Can you blame me? @revretch

[revretch]

Wow, I would not have guessed either. They don't give a source for commission, so I wonder if maybe one of the authors has a Tumblr? Because that's definitely a Tumblrb kind of look.

[the-paleoraptor]

“Swift Strike”

[spineless-chordate]

AK doodles compilations.

There are some repeat images cuz I'd randomly gather images from different files into one according to theme (e. g. Mudmud collection, Glady collection, busts collection).

[femmenietzsche]

Why Are Bird Eggs Egg-Shaped?

A new study points to a surprising reason for the varied shape of bird eggs—and shows that most eggs aren’t actually egg-shaped.

Researchers have argued that pointy eggs are common to cliff-nesting birds because they roll in a circle and are less likely to tumble off an edge. Or that asymmetric eggs pack together more easily and would allow females with large clutches to incubate their broods efficiently. Or that spherical eggs are stronger and less prone to breaking, or use the least amount of shell for a given volume, which would be useful for birds that can’t get enough calcium in their diet.

“There are a lot of hypotheses, but no conclusive explanation or theory,” says Stoddard, who’s an evolutionary biologist based at Princeton University. “It was a good puzzle.”

To solve it, Stoddard teamed up with L. Mahadevan, a biophysicist at Harvard University who has studied “how leaves ripple, how tendrils coil, and how the brain folds, among other things.” He realized that all eggs could be described according to two simple characteristics—how asymmetric they are, and how elliptical they are. Measure these traits, and you can plot every bird egg on a simple graph. They did that for the eggs of 1,400 bird species, whose measurements Stoddard extracted from almost 50,000 photos. It was the resulting graph that revealed the left-field nature of chicken eggs.

Pretty interesting, actually

[elodieunderglass]

Can I just share this graph from the original paper:

BEHOLD………. THE EGGNESS OF EGG