Passage 49
学霸导读 专家发现，动物跟人类一样，都有青春期。这一发现给青少年行为学家带来了全新的视角。
Have you ever seen a moody teenage elephant? It turns out elephant adolescents s 1 some behaviors with human teens. “They’re naive, they have a lot to learn and they make mistakes,” said Cynthia Moss who has studied elephants in Kenya for nearly 50 years.
A recent book, Wildhood: The Epic Journey from Adolescence to Adulthood in Humans and Other Animals, explores these kinds of low-judgment, high-risk actions.
“Adolescents frequently put themselves in d 2 deliberately”， the authors wrote. “Adolescent risk-taking is seen t 3 the animal world.” An example is a practice called “predator （ 掠食者 ） inspection”. This is when animals approach predators rather than f leeing. Adolescent animals watch， smell and learn about the predator so as to gather all kinds of information that can keep them safer as adults.
The idea that adolescents take risks because it is an instinct g 4 the behaviorist of human teens a new perspective.
Human teens have their own version of predator inspection. Teens seem driven to chase new things, t 5 boundaries and get experiences.
Laurence Steinberg， a psychology professor at Temple University， worked on two related studies—one involving mice， half of which were adolescents， drinking ethanol-spiked （ 掺了乙醇 的 ） water， and a 6 in which human teens played a video game that reproduced driving conditions.
“We found that in the p 7 of peers, adolescent mice drank more than they do when they’re alone,” said Steinberg. “But we didn’t f ind any such peer effects in adults, which is identical to the kinds of things we were f inding in human experiments.”
Steinberg said the teenagers in the simulated driving study also took more risks when others were a 8 , regardless of whether they interacted with their peers.
These f indings support what Steinberg says is another multi-species adolescent hallmark （ 特征 ）： the desire to socialize.
Dolphins f it that description， too. According to Ann Weaver， an animal behaviorist， there are similarities between dolphin gangs and gaggles （ 群 ） of teenage people. “They are at their most physically f it， they’re the s 9 and they do everything with exaggeration （ 夸 张 ），” she said.
The book’s authors include Barbara Natterson-Horowitz, a Harvard evolutionary biologist, and Kathryn Bowers, a science journalist. While writing the book, both were raising a human teen in their homes. Their desire to understand the wild was driven by wanting to understand their own children. They hope the book will help other people who are b 10 up adolescents.
1.__________2.__________3.__________4.__________5.__________
6.__________7.__________8.__________9.__________10.__________
高频词汇
teens /tiːnz/ n. 十几岁（13 至19 岁之间）
f lee /f liː/ v. （尤指因危险或恐惧而）逃跑
identical /aɪ'dentɪkl/ adj. 完全一样的，相同的
regardless /rɪ'gɑːdləs/ adv. 不管怎样，无论如何；不管，不顾
interact /ˌɪntə'rækt/ v. 相互交流；互动
physically /'fɪzɪkəli/ adv. 身体上地