BOBO ЙЌ d 9 9 9 9 9 9п+ И( џџ XБ И џџ ЙLџџ џ - Z џџџ Richard Northover f џџ B LOM! ` L џџ џ x H H _ џ§aѕ(ќ § Ф Ы lР Д - ^ь & ' џџ Й P l / Рc х ИЌ Й8 ЙT хc Иѓ0 ЗЌd Иџр [ф џџџџџџџџ ] Qy DSET T q r Ш ЙфЙ И Й ђІИј № 8 q t Ж З ЊИ Њ Й ЊBumblebees
Bumblebees have surprised researchers by their ability to navigate in complete darkness, writes Richard Northover. Thought to use landmarks and the sun to fin d their way around, they were considered to be textbook examples of visual foragers. But Lars Chittka of the University of Wuerzburg, Germany, and colleagues have discovered that worker bumblebees Bombus impatiens lay down scent beacons around a food source, which enable them to relocate it without any visual cues, and that even when these beacons are removed, the bees can still orientate themselves, suggesting some sort of built-in magnetic compass.
(Proceedings of the Royal Society of London B, vol. 266, p45-50).
Richard Northover Z џџ N ђ DSET џџ . H џџџџџџИџ ђ І yа л І ђ џџ 6 џџ yа л DSET џџ . H цn анnџџџџџџИѕЌ л І ђ џџ 6 џџ yа л DSUM * Richard Northover HDNI STYL 8 h џџ D STYLЙЄ Й 4 ЙрЙxИ ИєИЙ`Й4 џџ џџ џџ џџџџ џџ џџ џџ џџџџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџ џџџџ џџ џџ џџ џџ џџ @ џџ HASH $к сДоу ( L: Q hЙбк jзa zЋсo }Bod Ђ џџ CHARИ4 Ќџџ џџ џџ џџ џњ џџ џы џџ " џп џџ џћ џџ 4 џџ HASH R џџ CELLИє џџџ џ џџ џ џџ " џџ HASH џ j џџ GRPHИф џџ џ џџ џ џџ " џџ HASH Ц џџ l RULRЙ\ Џџџ џ џџ џ џџ § @ џџ ( џџ HASH џ џ @§ $ џџ LKUP џџ $ NAME Default Default SS Header Body Footer Footnote Footnote Index T џџ D FNTM Geneva MCRO MCRO oBlN oBlN BBAR BBAR џџMARK MRKS џџ MOBJWMBT ETBL XDSUM ПHDNI ёSTYL ћMCRO ;oBlN KBBAR [MARK kWMBT ETBL џў§ќћњљј№ёђѓєѕії