Artificial eggshell comes first in attempt to revive giant flightless moa

De-extinction firm Colossal Biosciences hopes incubation system can be scaled up but other scientists are scepticalThe flightless moa, an extinct bird of New Zealand, stood more than 3 metres tall, weighed over 200kg and had eggs larger than those of any bird now living. Now the de-extinction company Colossal Biosciences says it is a step closer to resurrecting the moa after creating an artificial eggshell.Colossal hopes the artificial incubation system, which it successfully used to hatch chick...