Evolutionary Biology

MRI brain scan highlighting auditory cortex response to chimpanzee vocalizations, illustrating evolutionary shared voice processing with primates.

Human brain’s voice area shows selective response to chimpanzee calls

10 दिसंबर 2025 AI द्वारा रिपोर्ट किया गया AI द्वारा उत्पन्न छवि तथ्य-जाँच किया गया

Researchers at the University of Geneva have found that specific regions of the human auditory cortex respond particularly strongly to chimpanzee vocalizations compared with those of other primates, including bonobos and macaques. The work, published as a reviewed preprint in eLife, suggests that human brain areas involved in voice processing are also tuned to certain nonhuman primate calls, reflecting shared evolutionary and acoustic roots.

Study ranks humans high in mammalian monogamy

A University of Cambridge study ranks humans among the most monogamous mammals, closer to beavers and meerkats than to chimpanzees. By analyzing sibling ratios across species and human societies, researchers found that long-term pair bonding is unusually prevalent in our species. Even in cultures allowing polygamy, human monogamy exceeds that of most other mammals.

Viruses evolve differently in space microgravity

18 जनवरी 2026 AI द्वारा रिपोर्ट किया गया

Scientists have discovered that bacteria-infecting viruses sent to the International Space Station evolve in unexpected ways compared to Earth conditions. In microgravity, these viruses and their bacterial hosts undergo distinct genetic changes, potentially improving treatments for drug-resistant infections. The findings, from a study aboard the ISS, highlight how space alters microbial interactions.

विज्ञान

Male bonobos detect fertility through subtle swelling cues

पर्यावरण

Long-nosed chameleon revealed as new species after 150 years

स्वास्थ्य

Modern life clashes with human biology shaped by nature, anthropologists say

New wolf snake species named for Steve Irwin

Researchers have discovered a new species of wolf snake on Great Nicobar Island in India, naming it Lycodon irwini in honor of the late conservationist Steve Irwin. The glossy black, non-venomous snake measures up to one meter and faces vulnerability due to its limited habitat. The finding highlights the underexplored biodiversity of the Andaman and Nicobar region.

Fatally infected ant pupae signal colony for disinfection

03 दिसंबर 2025 AI द्वारा रिपोर्ट किया गया

Researchers have discovered that terminally ill ant pupae release a distinctive scent to alert their colony, prompting workers to disinfect them and prevent infection spread. This altruistic behavior sacrifices the individual but safeguards the superorganism-like colony. The findings highlight parallels between ant societies and multicellular organisms.

Fossil uncovers marine origins of fish with human-like hearing

A 67-million-year-old fossil fish discovered in Alberta, Canada, has led UC Berkeley researchers to revise the evolutionary timeline of otophysan fish, revealing that their advanced hearing system developed in the ocean before two separate migrations to freshwater. This group, which includes over 10,000 species like catfish and zebrafish, evolved sensitive ears rivaling human hearing capabilities. The findings challenge long-held assumptions about their origins.

Island spider halves genome in evolutionary surprise

03 नवंबर 2025 AI द्वारा रिपोर्ट किया गया

Scientists have discovered that the spider Dysdera tilosensis, found only on the Canary Islands, has reduced its genome size by nearly half in just a few million years. This downsizing defies traditional theories predicting larger genomes in island species. Despite the smaller genome, the spider shows greater genetic diversity than its mainland relatives.

07 जनवरी 2026 23:40