শনিবার, ৯ ফেব্রুয়ারী, ২০১৩

FOR KIDS: Secret signals

Animals respond to chemical messages they may not even realize they?re swapping

Animals respond to chemical messages they may not even realize they?re swapping

By Roberta Kwok

Web edition: February 8, 2013

Enlarge

Chemicals called pheromones act as messengers between individuals. Many plants and animals ? including this squid ? respond to such secret signals.

Credit: Roger T. Hanlon

Pheromones work as messengers between individuals. They can make other members of the same species change how they behave or how they mature.

Scientists are still learning about these chemical messages, including how several species sometimes copy those pheromones for devious purposes. For example, some researchers have identified plants that mimic insect pheromones to attract the bugs. Not surprisingly, people also have learned to harness pheromones to deceive destructive pests ? sometimes luring bugs to their deaths.

Still unknown: whether people release pheromones ? and how others might respond to such secret chemical signals.

Source: http://www.sciencenews.org/view/generic/id/348176/title/FOR_KIDS_Secret_signals

ufc 143 results kickoff time super bowl 2012 superbowl national anthem patriots vs giants super bowl superbowl halftime show jason wu for target underwood

কোন মন্তব্য নেই:

একটি মন্তব্য পোস্ট করুন