ahlam1399
02-24-2017, 06:56 PM
Scientists found that bumblebees are nimble learners, especially when there's a sugary reward at the end. ** wonder they're such good pollinators.
أكثر... (http://www.npr.org/sections/thesalt/2017/02/24/516532358/could-a-bumblebee-learn-to-play-fetch-probably?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/sections/thesalt/2017/02/24/516532358/could-a-bumblebee-learn-to-play-fetch-probably?utm_medium=RSS&utm_campaign=news)