LifeOrcas are bringing humans gifts – what does it mean? Researchers have documented orcas seemingly gifting rays, seals and fish to scientists and divers, which could suggest they have theory of mind and engage in altruism – even across species ¿ìè¶ÌÊÓÆµ
EarthThese rocks are probably the last remains of Earth's early crust Geologists have long debated whether a stony formation in Canada contains the world’s oldest rocks – new measurements make a compelling case that it does ¿ìè¶ÌÊÓÆµ