时间:2018-12-24 作者:英语课 分类:Scientific American(六)月


英语课

This is Scientific American’s 60-Second Science, I’m Cynthia Graber. This will just take a minute.


There’s plenty of evidence that animals learn from one another. But until now, it was thought that only humans make judgment 1 calls, such as “that woman seems to be finding more food than that other guy, and she’s eating more than I am, so I’ll follow her.” This ability to selectively follow such cues shows sophisticated social learning. Now, scientists say they found the first animal example of this behavior in a common fish, the nine-spined stickleback. Two-hundred-seventy fish were study subjects. The researchers gave some of the fish access to one feeder stocked with lots of worms and one that didn’t. So the fish learned which feeder was best. Then the fish watched other fish eat, but the feeders were switched. From their own experience the sticklebacks had learned that feeder A gave more worms, but by watching, they could see that feeder B was now more plentiful 2. And when going back for seconds, they relied on social cues, not their own experiences, and headed over to B. The study is in the journal Behavioral Ecology. Another study demonstrating that the idea of the absolute uniqueness of human intelligence may be a bit fishy 3.


Thanks for the minute for Scientific American’s 60-Second Science, I’m Cynthia Graber.


 



1 judgment
n.审判;判断力,识别力,看法,意见
  • The chairman flatters himself on his judgment of people.主席自认为他审视人比别人高明。
  • He's a man of excellent judgment.他眼力过人。
2 plentiful
adj.富裕的,丰富的
  • Their family has a plentiful harvest this year.他们家今年又丰收了。
  • Rainfall is plentiful in the area.这个地区雨量充足。
3 fishy
adj. 值得怀疑的
  • It all sounds very fishy to me.所有这些在我听起来都很可疑。
  • There was definitely something fishy going on.肯定当时有可疑的事情在进行中。
标签: SSS stickleback
学英语单词
administration domain name
agmatoploidy (malheiros-garde1950)
air shut off valve
alkaline constituents
alloviabillty
analytic solutions
antitoxoplasmic substance
assheaded
automatic air vent
automatic pilot control unit
Baruta
barymastia
benzenonium
bhuj
Biomass waste
blast-proof design
broad-banded salary structure
bulking agent
caboodles
carbolized bouillon
cathode ray indicator
CFS to CFS
Charlotte Anna Perkins Gilman
chemotron
chief fisherman
choked technique
clear operation
cloud grasses
coincidence analyser
crosshair cursor
crosswordlike
dendronanthus indicus
diamond matura
disk file read
donaghues
douce
downeses
Doyet
epimerizes
ex-fiancee
FFing
field joint
floppy disc
g.t.
gargarisms
gentlemanlinesses
get off soundings
glamor boy
heavy metallic salt
Hebdom.
heterocellular ray
hippology
hot bending
innominate veins
irritative
job oriented terminal
kathemoglobin
Lentini, Fosso di
makr-
map cartography
mechanical execution
microorganism treatment
mislikeness
negative valency
neurocomputational
non-restoring division
noncontiguity
of all places
owever
p-octyloxyphenol
pack aluminizing medium
parallel detection
persillade
piniongear
pintail comb
pool-and-riffle
pre import financing
pre-dispositions
pseudohymenium
Puccinia levigata
r.williams
recuperacion
refining cell
request homing
room mother
sandwich panel
scampishly
sequence sorting
sex-conditioned character
short liquor
signorita
singleton
sun-4 workstation
superior central nucleus
surge voltage generator
tea bag
triumfetta pilosa roth
unparallelled
washer woman's skin
wing-rudiment
Yalicar
Yankeeland