Theoretical aliens
霍金設想的外星生物

* Two-legged herbivores suck up their food using huge vacuum snouts.

兩只腳的食草動物，它們能利用吸塵器般的巨嘴吸食食物;

* Multi-legged beasts have enough fur to allow them to cope with the -150℃ cold.(See photo, L)

能在零下150攝氏度的環境存活的多足長毛獸;(圖左)

* A squid-like creature could feed on the bottom of the salty ocean thought to exist below the icy crust of Jupiter's moon Europa.

木衛二"歐羅巴"行星上寄生在冰層下深海區的類似墨魚的海洋生物;

* Blimp-like creatures roaming the heavy atmospheres of gas giants sustain life by harvesting electrical discharges from powerful lightning flashes.(R)

氣態星球上可能存在巨型浮游生物，它們像小型飛船那樣漂在厚厚的大氣中，靠"吃"閃電獲取能量為生。(右)