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Invertebrates

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Chinese Fossil Trove Pushes Complex Animal Origins Into the Ediacaran

The Jiangchuan Biota’s soft-bodied fossils narrow the rocks-versus-clocks gap by showing Cambrian-style anatomy in older layers.

Oldest Chelicerate Fossil Dates to 500 Million Years Ago

Sparser Tongue Hairs Leave Queen Bumblebees Worse at Nectar Gathering, PNAS Study Finds

Sleep Repairs Neuronal DNA in Jellyfish and Sea Anemones, Study Finds

Jellyfish and Sea Anemones Without Brains Shown to Sleep

New Deep-Sea Anemone Species Builds Shell-Like Homes for Hermit Crabs

Ocean Census Confirms 30 New Southern Ocean Species, Including Carnivorous 'Death-Ball' Sponge

Microscopic Flatworm Can Grow Two Heads and Flip Its Body Axis, Study Finds

Rice Weevil Image Wins 2025 Nikon Small World Photo Contest

New Chemical Fossils Strengthen Case That Sponges Were Earth’s Earliest Animals

Ghost the Giant Pacific Octopus Enters Final Life Stage, Tending Unfertilized Eggs

Wild Study Maps Octopus Arm Roles, With Front Limbs Exploring and Rear Limbs Moving

Robotic Fiddler Crab Reveals How Males Adjust Courtship to Rival Displays

First Soft-Bodied Cambrian Fossils Found in Grand Canyon Reveal Evolutionary ‘Goldilocks Zone’

Cambrian Fossil Reveals Spider Brain Structure and Sea Origin for Arachnids

Wild Nematodes Self-Assemble into Wriggling Superorganism Towers for Dispersal

Study Confirms Teeth Evolved from Sensory Armor of Ancient Fish