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ALT Grid of 16 diverse arthropod photos including insects, spiders, crustaceans, and myriapods with text "HELP US SORT ARTHROPODS"
ALT Infographic showing four arthropod groups with simple icons: Chelicerates (a spider icon), Crustaceans (a crab icon), Hexapods (a dragonfly icon), and Myriapods (a centipede icon)
ALT Call to action: 'Start sorting arthropods on iNaturalist: tr.ee/identifyweek4' with green millipede icon
ALT Chelicerates identification guide with photos of spiders, scorpions, ticks, and mites. Key features: 8 legs, no antennae, two body segments
ALT Crustaceans identification guide with photos of crabs, lobsters, shrimp, and isopods. Key features: two pairs of antennae, 5+ pairs of legs, often aquatic
ALT Hexapods identification guide with photos of various insects. Key features: 6 legs, three body segments, one pair of antennae, most have wings
ALT Myriapods identification guide with photos of centipedes and millipedes. Key features: many body segments, 1-2 pairs of legs per segment
ALT A fuzzy, bright red mite crawls along a log.
ALT A fuzzy, bright red mite crawls along a log.
ALT There is a fallen log surrounded by leaf litter and tall, slender trees.
ALT A barn owl in flight with wings spread, showing intricate barred patterns on its feathers against a blurred natural background. White text overlaid reads "GO WATCH SOME BIRDS" in large letters. Photo credit shows "American Barn Owl (Tyto furcata) by radrat on iNaturalist."
ALT An Osprey perched on a metal lamppost against a gray sky, appearing as a dark silhouette. White text reads "USE THE TOOLS YOU HAVE" as the headline, explaining that smartphones work as cameras, recording devices, and field guides. Additional text notes that photos don't need to be perfect. An italicized call-to-action reads "Try this: Share your bird photos to iNaturalist! The community helps you identify it, and your observation can contribute to science and conservation." Photo credit: "Osprey (Pandion haliaetus) by seastarya on iNaturalist."
ALT A Pied Oystercatcher with distinctive black and white plumage, bright orange-red bill, and pink legs stands on rocky coastal terrain with water visible in the background. White text reads "PRACTICE STAYING STILL" as the headline, with instructions to find a comfortable spot and stay quietly for ten minutes. Text in the lower right reads "It's worth it, we promise." Photo credit: "Pied Oystercatcher (Haematopus longirostris) by james_birdtourasia on iNaturalist."
ALT A silvery, long fish with a translucent dorsal fin and tail fin floats vertically at the surface of the ocean.
ALT A silvery, long fish with a translucent dorsal fin and tail fin floats vertically at the surface of the ocean.
ALT A silvery, long fish with a translucent dorsal fin and tail fin floats vertically at the surface of the ocean.
ALT A silvery, long fish with a translucent dorsal fin and tail fin floats vertically at the surface of the ocean.
ALT A gray and yellow bird stares into the camera.
ALT A small brown bird with large yellow eyes stares into the camera.
ALT Grid of 20 diverse echinoderm photos including colorful sea stars, urchins, and sea cucumbers. Title reads "HELP US SORT ECHINODERMS."
ALT Infographic showing five echinoderm classes with icons: Sea Stars (Asteroidea), Brittle Stars (Ophiuroidea), Sea Lilies & Feather Stars (Crinoidea), Sea Urchins/Sand Dollars/Heart Urchins (Echinoidea), and Sea Cucumbers (Holothuroidea)
ALT Call to action on black background: You can contribute identifications from any computer, anywhere in the world! Start sorting echinoderms on iNaturalist: tr.ee/identifyweek3
ALT Six sea star photos showing classic starfish shape with thick arms. Text explains identifying features: fleshy arms connected to central disk with tube feet visible underneath.
ALT Six brittle star photos showing spider-like appearance. Text explains identifying features: slender snake-like arms separate from small round disk that move flexibly.
ALT Six feather star and sea lily photos showing delicate, plant-like forms. Text explains identifying features: feathery branched arms, some attached to stalks, others free-swimming.
ALT Six photos of sea urchins, sand dollars, and heart urchins. Text explains identifying features: spherical or flat hard shells with movable spines and no arms.
ALT Six sea cucumber photos showing elongated soft bodies. Text explains identifying features: marine sausage-like appearance with leathery skin and retractable mouth tentacles.