High mountain lakes in Europe were naturally fishless due to geographical barriers. However, recent studies revealed that humans introduced fish into these ecosystems much earlier than previously documented. Utilizing ancient environmental DNA (eDNA) analysis, researchers have traced fish presence in Lake Redon, located in the Pyrenees Mountains of Spain, back to the 7th century CE. ...
When birds feed on nectar from flowers, they do more than just get a meal—they play a crucial role in pollination, transferring pollen from one flower to another. But how well do the shapes of their beaks match the flowers they visit? A new study on Australian honeyeaters feeding on spotted emu bush (Eremophila maculata) ...
Invasive species are organisms that thrive and spread aggressively in regions where they are not native. Often introduced by human activities, intentionally or accidentally, these species can disrupt local ecosystems. The absence of natural predators in the new environment allows them to multiply rapidly, posing significant challenges to native life forms. From plants to animals ...
