# watercolourwednesday publicdomain digitisedcollections rtmpartchallenge paleoart botanicalillustration neuroscience blender3d blender neurociencia dinosaurs scientificillustration archaeology catalan pyrenees digital painting scientific illustration arrels prehistòriques botanicmonday graells mncn botany insect insects ant moth paleostream dinosaur richardsspur permian solnhofen theropod sketching sundayfishsketch ichthyology fishsci adobefresco raptor bear synapsid ankylosaur sketches temnospondyl amphibian mosasaur art illustraciencia blackerwood naturalhistory medtwitter sciencetwitter scicomm sciengage stemartists bhlib histsciart hernaturalhistory feathursday avocets mathyear linocut nautilus printmaking mathart mathematics spiral goldenratio goldenspiral
画質 高画質

For here is a collection of watercolours undertaken by James Stewart (1791-1863) for William Jardine's The Naturalist's Library https://t.co/Ibgeydg5Fc

1 13
2020-06-17

The is doing a weekly art challenge! I missed last week's, which was a Tyrannosaur, so I'll include it with this week's challenge, Triceratops - the part of which will be played by another chasmosaurine ceratopsian, Anchiceratops

11 33
2020-06-17

I'm the kind of person who needs things to percolate. I spent 6 frustrating weeks painting these hellebores over and over in my head (though 2 weeks in, I was able to do a real color study). New botanical watercolor in progress

2 4
2020-06-17

Part of one of the three plates depicting the tetrapods of the Late Jurassic Solnhofen Formation of Germany. This is one of the plates that will appear in my book (currently still in prepartion). I have left only the not in silhouette.

104 447
2020-06-17

Illustration made as a logo for the archaeological project ARRELS PREHISTÒRIQUES.
I highly recommend folowing their account:

6 24
2020-06-16

Centaurea amblensis was described by Graells in 1859. It differs well from other centaureas for its numerous flowers pink, which in the other species are scarce and yellow. The drawing of the species was made by a former director of

1 8
2020-06-16

For this week's I digitally painted a red serpae tetra (Hyphessobrycon eques). I've always enjoyed having these in aquaria.

2 30
2020-06-15

Results from the
Austroraptor (for Thomas Strimpel, Agriotherium (for Ida), Titanophoneus and ZUUUUUL.

78 337
2020-06-14

New cover we made! A flexible bioinspired metal-insulator-metal metasurface is developed through a simple and scalable biomimetic fabrication process producing tunable broadband surface-enhanced Raman scattering (SERS) enhancement factors.

2 48
2020-06-13

Results from the
Arsinoitherium, Globidens, Herrerasaurus and Mastodonsaurus.

61 267
2020-06-13

We often highlight the beautiful bird portraits done by Elizabeth Gwillim in Madras (early 19th c.), but did you know she also painted flowers? Check out this wonderful article by Dr. Anna Winterbottom to learn more https://t.co/JNaPSe4XJl

5 13
2020-06-13

Muscles of the neck (study, not to be used for educational/commercial purposes)

For full hq illustration please visit: https://t.co/srbIUhXEzb

4 6
2020-06-12

These paintings are attributed to Harriet G. Williams, and accompanied this hand-written manuscript prepared by her husband. From https://t.co/yJ7tKcOvDS.

4 7
2020-06-11

(Recurvirostra avosetta) sweep their curved bills side to side to search for aquatic invertebrates. SciArt by Elizabeth Gould for John Gould's Birds of Europe, Vol. 4 (1837). In via : https://t.co/AadRgdQXcL

7 30
2020-06-12

I should make some more of these! theme is the Golden Ratio so I’m sharing my comparing the spiral of the shell with the Golden spiral.⠀
⠀
https://t.co/lVltG5CQxb

4 11
2020-06-11

Blue Morning Glory (Ipomoea indica). by Georgiana Curtis for Curtis's Botanical Magazine, Vol. 68 (1841-42). View more from this series in with thanks to the Raven Library of the for digitizing: https://t.co/eCdKD0u5jz --

17 49
2020-06-11