New research has revealed that fish embryos actively control their hatching timing through a neurohormone, Thyrotropin-Releasing Hormone (TRH), which triggers the release of enzymes that dissolve the egg wall. This groundbreaking discovery uncovers a previously unknown neural mechanism that governs a critical life-stage transition, showing that embryos are not passive but instead actively make life-or-death decisions. The finding has significant evolutionary implications, offering new insights into neurobiology, survival strategies, and environmental adaptation in vertebrates.

A new study suggests that the fundamental abilities underlying human language and technological culture may have evolved before humans and apes diverged millions of years ago. The findings will be published 5th December 2024 in the journal PeerJ.

In the past, chemicals like asbestos and lead have caused widespread harm before their dangers were fully understood. Today, many unknown chemicals similarly pose potential risks. Recently, Chiba University researchers developed a new analysis method for detecting such chemicals in the human body. By studying blood samples from pregnant women, they identified 106 compounds, including potentially harmful substances like phthalates and parabens. This innovative approach could inform new regulations to better protect public health.