Complex sentence: The bio-domed research complex and aquarium, at 40 hectares, four times the size of the Eden Project, would be built on the site of an old brickworks, and is the brainchild of an international team of biologists and conservationists.
Split into simpler sentences: The bio-domed research complex and aquarium, at 40 hectares (four times the size of the Eden Project), would be built on the site of an old brickworks. It is the brainchild of an international team of biologists and conservationists.