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We summarize the week's scientific breakthroughs every Thursday.
- Animals
Among chimpanzees, thrill-seeking peaks in toddlerhood
In humans, teens do the most dangerous things. In chimpanzees, that honor goes to toddlers. The difference may lie in caregiver supervision.
- Animals
In a first, orcas and dolphins seen possibly hunting together
New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off British Columbia.
- Paleontology
These fossil finds shed new light on the past in 2025
The year's top paleontological wonders ranged from a 540-million-year-old penis worm to a decades-old rodent impression.
- Space
These space stories made us look up in 2025
Space is always inspiring and 2025 was no exception, with finding Betelgeuse’s buddy, debuting a prolific survey telescope and more.
- Life
Watch a cancer cell evade capture
By moving around, some cancer cells force attacking immune cells to just nibble at the edges rather than engulf them completely.
- Microbes
This giant microbe organizes its DNA in a surprising way
3-D microscopy shows that the giant bacterium Thiovulum imperiosus squeezes its DNA into peripheral pouches, not a central mass like typical bacteria.
- Artificial Intelligence
Chatbots may make learning feel easy — but it’s superficial
People who use search engines develop deeper knowledge and are more invested in what they learn than those relying on AI chatbots, a study reports.
- Animals
This fly’s flesh-eating maggot is making a comeback. Here’s what to know
After a decades-long hiatus, new world screwworm populations have surged in Central America and Mexico — and are inching northward.
- Physics
There’s math behind this maddening golf mishap
Math and physics explain the anguish of a golf ball that zings around the rim of the hole instead of falling in.
- Animals
Deep Antarctic waters hold geometric communities of fish nests
Scientists found thousands of patterned fish nests in Antarctica’s Weddell Sea, boosting calls for marine protected areas.
- Climate
Hurricane Melissa spins into a monster storm as it bears down on Jamaica
The story of Atlantic hurricanes is treading a familiar — and frightening — path: Climate change is fueling huge, slow-moving, rain-drenching storms.
- Physics
These simple knife tricks stop onion tears instantly
With a high-speed camera and a tiny guillotine, scientists showed that chopping onions slowly and with sharper knives cuts down on tears.
