“In effect then, whistles that mix with chucks say ‘there's an enemy of average threat that's here’, and whistles without chucks say ‘there's an enemy of seemingly average threat around here somewhere’, while pure chirps say, ‘I'm hiding here because there's an immediate danger.’” Hare told.
Hare and some other researchers believe such sounds are part of an advanced language that develops just as all other communication systems.
Although squirrels risk their lives when they call out to warn others of threats, other squirrels might admire this behaviour, thus increasingly the caller's social status, like humans who look up to heroes. Hare added that other animals, such as birds, probably understand at least some squirrel language, since they also may benefit from the alarm calls.
In fact, another Canadian study found that deepvoiced, blackcapped chickadees have their own language, too.According to certain research, there are a lot of tidings in chickadees' calls, such as directing fellows' activities, keeping in contact between mates, and raising alarms.
While chickadees and other birds are often welcomed into gardens by homeowners, squirrels are frequently viewed as pests(害兽). Hare wishes a greater understanding of the complex social lives and communication systems of squirrels will provide “hope that humans will gain a greater appreciation and stop doing harm to these animals”.
【【最后抢分】2016年高考临门一脚 自选训练(8)附答案】相关文章:
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(10)附答案
★ 辽宁省辽阳市2014高考英语单项选择一轮(暑假)训练(11)附答案
★ 安徽省淮南市2014高考英语一轮单项选择及文章训练(23)及答案
★ 辽宁省辽阳市2014高考英语单项选择一轮(暑假)训练(8)附答案
★ 常熟市2014高考英阅读理解语一轮(暑假)训练题(1)及答案
★ 2014高考英语(新人教版)一轮基础训练(1)A、B卷(附答案或解析)
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(39)附答案
★ 河南省三门峡市2014高考英语一轮(暑假)基础训练(11)附答案
★ 贵州省贵阳市2014高考英语(新人教版)一轮阅读训练(8)附答案
★ 重庆市2014高考英语阅读理解一轮(精品)训练题(6)附答案
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21