EnvironmentRenewables supply 30 per cent of global electricity for the first time The rapid growth of solar power led to a record-breaking year for clean energy generation in 2023, and the year is expected to mark the start of a long-term decline in fossil fuels ¿ìè¶ÌÊÓÆµ
LifeZebras bob their heads at each other to signal cooperation Head-bobbing seems to be a way for zebras to invite others to groom, graze or move together, suggesting sophisticated social and cognitive capabilities ¿ìè¶ÌÊÓÆµ