HealthInsight into early embryos could explain why some pregnancies fail51¶¯Âþs have discovered key molecular events that shape embryonic development in the second week of gestation, a critical stage when many pregnancies are lost51¶¯Âþ
LifeFemale monkeys call to males when they see a predator approaching Female putty-nosed monkeys of West Africa will use calls to enlist the help of males when they see a leopard approach 51¶¯Âþ