Animals are eukaryotic organisms with many cells. They do not use light to get energy and grow, as plants do. The study of animals is called zoology. Animals use different ways to get energy from other living things. They usually eat other living things, but some are parasites, or have photosynthetic protists as symbionts.
dòngwù shì yǒu hěnduō'g xìbāo d zhēnhéxìbāo shēngwù. Tāmen bù xiàng zhíwù yòng guāng dédào néngliàng shēngzhǎng. Dòngwù d yánjiū jiàozuò dòngwùxué. Dòngwù yòng bùtóng fāngfǎ cóng qítā shēngwù dédào néngliàng. Tāmen tōngcháng chī qítā shēngwù, dàn yǒuxiē shì jìshēngchóng, huòzhě yǒu guānghézuòyòng d yuánshēngshēngwù rú gòngshēngshēngwù.