Content by The Scientist

Ancient bones of the newly described toothless, stout-nosed dolphin Inermorostrum xenops suggest that it slurped its food.

As it matures, this chromatophore-clad pyjama squid (Sepioloidea lineolata) hatchling will learn to use the color-changing cells that adorn its body to alter its appearance.

A novel contrast agent capable of staining the finest blood vessels reveals an elaborate, entwined network in this pigeon’s CT scan. 

Scientists engineer a new polymer that prevents macrofouling mussels from sticking to underwater surfaces.

Among their many functions, macrophages in mouse testes guard sperm against attacks by other immune cells. 

High-resolution neutron imaging and CT scans of the tyrannosaur Bistahieversor sealeyi’s 74-million-year-old skull shed light on its evolution.

This giant larvacean can ingest microplastic pollution and poop it down to the sea floor.

M proteins from Streptococcus bacteria selectively kill mouse macrophages and human macrophage-like cells by prompting cell death.

When scores of migrating wildebeest fail to survive a treacherous river crossing, their corpses fuel thriving ecosystems.

Marabou storks on Kenya’s Mara River feast on the carcasses of migrating wildebeest that failed to make it across the waterway.

Neural plasticity wanes with age, but increasing the protein Arc—abundant earlier in life—in the visual cortex of mice can fend off this decline.

Using diffusion-weighted tractography, scientists can produce a detailed image of the minute neural fibers within a mouse brain.  

Using human pluripotent stem cells, scientists engineered an amniotic sac-like structure, potentially useful for uncovering the elusive cellular signals that lead to infertility.

The protein encoded by the gene that causes Fragile X in humans partners with another protein, dNab2, to alter gene expression in fruit fly neurons.

A failing heart is easily distinguished from a healthy one by numerous tell-tale signs, including its slender, stretched-out walls, increased size, and pooled blood clots.