For colubrids, the venom must serve some other purpose, maybe linked to digesting prey.(对于黄颌蛇来说,毒液一定有其他的作用,可能和消化猎物有关。)
Antarctic octopuses eat a wide variety of animals. They catch their prey with their tentacles and use their venom to kill them.(南极章鱼吃各种各样的动物。它们先用触须抓住猎物,然后用毒液杀死它们。)
Tarantula venom is weaker than that of a honeybee.(狼蛛毒液的毒性比蜜蜂的都弱。)
Now, it sounds far-fetched, venom is the basis for human drugs.(现在,这听起来很遥远,毒液是人类药物的基础。)
One family of completely harmless snakes, the kingsnake, has also evolved serum that neutralizes rattlesnake venom.(一种完全无毒的蛇家族,王蛇,也进化出了能中和响尾蛇毒液的血清。)
Snake venom is a mixture of proteins, some toxic, poisonous, and some not.(蛇毒是一种蛋白质的混合物,有些有毒,有些没毒。)
Beware: these eye-catching anemones have venom in their tentacles, which they use to stun and capture their prey.(要当心:这些引人注目的海葵的触手上有毒液,它们就是用这个来使猎物昏迷从而捕捉到猎物的。)
Venom is produced by holocrine glands in the spider's chelicerae (mouth parts).(毒液是由蜘蛛螯(嘴部)的全分泌腺产生的。)
In most venomous snakes, like vipers and cobras, the venom is used to catch and inmoblize the prey; but in colubrids, venom drips onto the prey only after the prey is in the snake's mouth.(在大多数毒蛇中,如蝰蛇和眼镜蛇,毒液用于捕捉猎物、使其无法行动;但在彩颌类中,只有在猎物到了蛇嘴里后,毒液才会滴到猎物身上。)
Octopuses catch their prey with their tentacles and use their venom to kill them, much like snakes.(章鱼先用触须抓住猎物,然后用毒液杀死它们,和蛇很相像。)