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@jby@ecoevo.social
2025-11-12 14:17:04

Beavertail prickly pear, Opuntia basilaris, in bloom this spring at Vasquez Rocks County Park
#naturalist

A close view of three just-opening flowers with many bright pink petals, at the tip of a green cactus pad that looks sort of like a flat beaver tail
@jby@ecoevo.social
2025-12-11 16:54:03

Eastern gray squirrels, Sciurus carolinensis, apparently sharing a nest-hole in the wintery woods near Acton, Massachusetts
#naturalist

Two rather fat gray squirrels perched by a knothole in the trunk of a tree, one down by the knothole and the other facing downward, above the knothole
@jby@ecoevo.social
2025-11-10 15:19:03

Crater Lake this June, as seen from the parking lot of the Crater Lake National Park visitor center, which was still half-buried in snow
#naturalist

A deep blue arc of quiet lake, ringed by snow-streaked crater walls and a handful of green conifers, with a conical island rising from the water
@jby@ecoevo.social
2025-12-09 15:54:03

A swift little brown creeper, Certhia americana, on a cloudy San Juan Island morning
#naturalist

A small bird with brown-and-white upper parts and a white breast, and a longish curved bill, clinging to the side of a rough tree trunk facing upwards, braced by its tail feathers
@jby@ecoevo.social
2025-11-05 14:17:04

A bright-eyed spotted towhee, Pipio maculatus, in Stanley Park, Vancouver
#naturalist #bird

A songbird with a black head, breast, back, and tail, black wings with white spots, a white belly, and bright orange-red flanks, perched alertly on the crossbeam of a fence
@jby@ecoevo.social
2025-12-05 15:15:13

Oxeye daisies, Leucanthemum vulgare, along the trail to Granite Lake this summer
#naturalist #photography

Classic radiate asteraceous flowering heads with bright yellow disc florets framed by long white ligules; one in sharp focus with others out of focus in the background
@jby@ecoevo.social
2025-12-03 14:17:03

A wren (Bewick's, I think, Thryomanes bewickii) in Seattle's Discovery Park this summer
#naturalist

A brown passerine with sharp, curved bill, white and brown-flecked breast, and a white stripe over its eye, perched on a twig that runs more or less vertically down the middle of the frame so the bird is sitting at an angle, watching the camera side-on
@jby@ecoevo.social
2025-11-03 15:19:03

Cones and leaves of red alder, Alnus rubra, along the trail to Granite Lake back in the warmer days of August
#naturalist

@jby@ecoevo.social
2025-12-01 15:19:03

Tufted titmouse, Baeolophus bicolor, in Falmouth, Massachusetts last December
#naturalist #wildlife

@jby@ecoevo.social
2025-10-30 15:54:04

An American crow, Corvus brachyrynchos, keeping watch at the water taxi landing by Sunset Beach, Vancouver
#naturalist

@jby@ecoevo.social
2025-10-28 14:54:09

The ridgeline of Mount Roosevelt overlooking Snow Lake, in the Alpine Lakes Wilderness, Washington State
#naturalist #photography #mountain

A rocky ridgeline with multiple sharp peaks, the lower slopes forested with green conifers, under white clouds with a little blue sky peeking through
@jby@ecoevo.social
2025-11-27 16:54:04

A sanderling, Calidris alba, probing for prey at the tide line on Asilomar State Beach back in January
#naturalist

A small round shorebird with brown wings, neck, and cap and snowy white underparts, reflecting in the surface of the wet sand as it bends down to probe with its bill
@jby@ecoevo.social
2025-11-25 15:54:03

Columbines, Aquilegia formosa, in Yosemite Valley this spring
#naturalist #wildflower

Two downward-facing red flowers with long nectar spurs on each of their five petals and a bundle of long-exerted stamens, in focus against a backdrop of green and brown
@jby@ecoevo.social
2025-10-20 14:17:53

Facing down a new week of too many deadlines like this chestnut-backed chickadee (Poecile rufescens) in Stanley Park, Vancouver
#naturalist #wildlife #photography

A small round passerine perched on a twig, the crown of its head pointed at the camera as it eyeballs the photographer. It has chestnut-brown shoulders and flanks, a buff breast, a darker brown stripe across its throat, white cheeks, and a deep brown cap
@jby@ecoevo.social
2025-10-21 14:54:04

A softly dapper dark-eyed junco, Junco hyemalis oregonus, in Stanley Park, Vancouver
#naturalist #bird

A sparrow-like bird with brown wings, buffy flanks, a white breast, and a sooty dark head, perched on a twig
@jby@ecoevo.social
2025-11-20 16:54:04

A western fence lizard, Sceloporus occidentalis, perched on a fence post, along the trail in Yosemite Valley this spring
#naturalist

@jby@ecoevo.social
2025-11-19 14:17:05

These weasels have locally adapted their winter coats to varying snow cover thanks to a million-year-old mutation
#naturalist

Detail from Figure 1 of the linked preprint: a diagram contrasting the two weasel morphs, one of which is brown in summer and white in winter, and the other of which is brown all year; with images of weasels in both forms of winter coat; and then nucleotide and amino acid sequences for the two MC1R variants underlying the two coat types
@jby@ecoevo.social
2025-11-18 15:54:03

A sleepy great blue heron, Areda herodias, in the Seattle Arboretum's Japanese garden
#naturalist

@jby@ecoevo.social
2025-11-14 15:15:11

Autumn colors in the Japanese garden at the Seattle Arboretum this past weekend
#naturalist #photography

A view across a pond to a footbridge and a hillside covered in manicured shrubs and trees, many evergreen but some with bright orange, yellow, and red autumnal leaves. The colorful leaves are reflected in the still waters of the pond.
@jby@ecoevo.social
2025-10-23 15:54:04

Sunlight through steam rising off a fallen snag in Stanley Park, Vancouver
#naturalist #forest #photography #Vancouver

The twisted roots of a fallen tree with reddish-brown wood, lying in the midst of a green forest, its trunk pointing away from the camera. Plumes of steam rise from the roots, illuminated by beams of sunlight from above.