目前,在太空动物园里旅居的都是中小型动物,如黄蜂、鸡、兔子、猫、狗、猴、青蛙和鱼等。苍蝇和老鼠虽为人类所憎恶,但作为研究的良好对象,也成为太空动物园的座上客。然而狮、虎、象等,由于运载上天所需的成本太大,尚需等待时机。·重力场影响繁殖·科学家把几百只果蝇分放在太空动物园的三个 So far, space zoos are home to small and medium sized animals such as wasps, chickens, rabbits, cats, dogs, monkeys, frogs and fish. Flies and mice, though abhorrent to humans, are good targets for the study and have also become space visitors to the zoo. However, the lion, the tiger, the elephant and the like still have to wait for the opportunity due to the huge cost of carrying God. · Gravity field affects breeding · Scientists put hundreds of flies in space zoo