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Researchers observed a human endothelial cell under standard phase contrast microscopy (left) and thermal imaging using a laser probe on a titanium film (right).

A red fox (Vulpes vulpes) leaps toward a meal after hearing it beneath the snow in Colorado.

This cross-section of a yellow water lily (Nuphar lutea) leaf bud shows the two sides of the leaf waiting to unfurl.

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This American bumblebee (Bombus pensylvanicus) specimen was captured in Virginia and decked out for the holidays.

Virus-like particles (purple) bud from the oviduct cells of a parasitoid wasp (Venturia canescens) to eventually shield the eggs from a host’s immune response.

These short-nosed seasnakes (Aipysurus apraefrontalis), a species previously thought extinct, were photographed courting off the coast of Western Australia.

Trypanosoma cruzi parasites (green), the cause of Chagas disease, multiply in mouse cardiac muscle cells (red) after infection.

This virtual reconstruction of a seed from the Early Cretaceous is based on the embryo and nutrient storage structures preserved in a fossil.

Researchers labeled these dendrites from a grasshopper (Schistocerca americana) neuron with silver and visualized them under a confocal laser scanning microscope.

A limpet’s tongue-like radula has chitonous “teeth” structures used to scrape up algae.

As a diagnostic tool, birefringence relies on scattering polarized light off treated blood to create images like this one from an Ebola-infected sample.

Highlights from the American Society for Cell Biology’s 2015 video grant competition

Researchers used CRISPR/Cas9 to replace this amphipod (Parhyale hawaiensis) hatchling’s normal mouthpart (yellow) with a claw (blue).