A letter signed by 46 individuals and organisations, including Sir David Attenborough, asks the Welsh Government to explicitly ban the teaching of creationism as science.
Organised by campaign group Humanists UK, it also calls for primary school pupils to be taught about evolution.
The Welsh Government said it expects "all pupils will be taught evolution".
The new curriculum, due to be rolled out from September 2022, sets out six broad "areas of learning and experience" including science and technology....