#biology is an active hashtag on Bluesky. In the last 30 days, 326 people shared 1,242 posts with it — around 41 a day. Activity is up 4% versus the previous week, peaking on Jul 17 with 74 posts.

Posts with #biology

D. C. Fitzgerald

@dcfitzgerald.bsky.social

3 months ago

Gouldian Finch (Erythrura gouldiae)...Mother Nature was working with a 'no such thing as too much' philosophy the day she designed this finch...native to a very specific & shrinking corridor across Northern Australia. Though a popular pet bird. #bird #photo #nature #biology #wildlife

Gouldian Finch perched on a textured, tan branch. The bird is a vibrant collage of saturated colors: a bright red face, a deep purple chest, and a brilliant yellow belly, with a leafy green back and wings. A thin turquoise band wraps around the back of its head, and its sturdy beak is a clean, ivory white. The background consists of soft-focus green leaves and light-colored stalks, making the bird’s sharp, multi-colored plumage stand out vividly.

79 451 3608

D. C. Fitzgerald

@dcfitzgerald.bsky.social

29 days ago

Tufted Coquette (Lophornis ornatus), an extremely tiny/rare species of hummingbird, native to S. America & Trinidad. During courtship rituals, males fan their plumes out while hovering in a lyrical side-to-side pendulum motion in front of a female. #birds #biology #wildlife #nature Not Al.

80 529 3042

D. C. Fitzgerald

@dcfitzgerald.bsky.social

3 months ago

Black Heron or Black-Egret (Egretta ardesiaca) engaging in canopy feeding…this is so the heron can see past the surface reflection to spot fish. #nature #birds #wildlife #biology

88 414 2743

D. C. Fitzgerald

@dcfitzgerald.bsky.social

3 months ago

Spotted Fritillary (Melitaea didyma)...found in Eurasia and North Africa...adults like thistles, lavender, knapseeds & oregano. #butterfly #wildlife #nature #biology #photo

41 308 2458

D. C. Fitzgerald

@dcfitzgerald.bsky.social

3 months ago

Agami Heron (Agami agami). Mexico & the Amazon Basin. Stealth predators, they crouch motionless on branches or tree roots overhanging water for hours at a time. #birds #nature #wildlife #photo #biology #conservation

31 283 2071

D. C. Fitzgerald

@dcfitzgerald.bsky.social

about 2 months ago

Pesquet’s Parrot (Psittrichas fulgidus) found in the montane rainforests of New Guinea. The short head feathers have evolved so they don’t mat or look like slobs when eating sticky figs. #birds #biology #wildlife #nature

38 255 1920

D. C. Fitzgerald

@dcfitzgerald.bsky.social

3 months ago

Green Jay (Cyanocorax yncas)…Mexico, Central/South America up to south Texas…omnivores, they take almost everything…insects, fruit, seeds, small animals. They’re Covids so they’re very smart. #birds #wildlife #nature #biology

With a shocking palette that looks like it was painted by a tropical enthusiast, the **Green Jay** is a standout of the brushlands. It sports a brilliant **yellow belly**, a lime-green back, and a vivid blue-and-black head.

Found from South Texas through Central and South America, these birds are as noisy as they are colorful. They are highly social, often traveling in family flocks, and exhibit remarkable intelligence—even using sticks as tools to pry insects from tree bark.

31 176 1667

D. C. Fitzgerald

@dcfitzgerald.bsky.social

over 1 year ago

Eurasian Eagle-Owl (Bubo bubo) found across much of Eurasia. Females can reach lengths of up to 75 cm- 2.45 ft and weigh between 1.75 to 4.6 kg - 4 to 10 pounds. In trying to identify the eagle-owl the deep orange eyes are a big clue. #owls #birds #nature #wildlife #biology #Photo

21 77 1296

Susan Howe

@dancingsue.bsky.social

7 months ago

#fungifriends #mushrooms #mycology #nature #fungi #biology #photography Another Marasmius hudsonii (Holly parachute) yesterday. I’m looking out for them now!

27 96 1197

SICB journals

@sicbjournals.bsky.social

6 months ago

IOB welcomes DELBERT ANDRÉ GREEN II, as Associate Editor in 2026! Green is an Assistant Professor of #Ecology and #Evolutionary #Biology, University of Michigan-Ann Arbor greendeilab.com #biology #academia #PhD #science #entomology #butterflies

4 80 1156

D. C. Fitzgerald

@dcfitzgerald.bsky.social

about 1 month ago

Fascinating, high-speed predatory strike by a Flamboyant cuttlefish (Metasepia tullbergi or Metasepia pfefferi) hunting a small crab on the ocean floor. #wildlife #biology #nature