tailieunhanh - bbc wildlife magazine october 2010 phần 9

Bloomberg BusinessWeek Tạp chí Business Week, tạp chí tin tức kinh doanh hàng đầu châu Mỹ, làm cho thế giới kinh doanh hấp dẫn bằng cách xác định và phân tích các sự kiện quan trọng, xu hướng nóng | From the forum UK Orcas OK It was fascinating to learn that we have a permanent though small population of killer whales off our shores Orcas in the British Isles July that they supposedly eat mammals and that minke whales flee when they hear them approaching. It would be interesting to imagine what happens when they meet basking sharks around the Isle of Man. Has anyone seen anything Thylacine forum I m glad that science does not support the theory that magpies are negatively affecting songbirds it s humans that are the real problem. Nicola Allen Via email Mobster magpie Your celebration of this resourceful species reminded me of an incident I witnessed some years ago. I saw a cat emerge from a hedgerow with a vole in its jaws. Two nearby magpies immediately began mobbing this cat and one of them attacked. Cat and bird rolled around on the ground for a few seconds before the magpie emerged triumphant. Both birds flew off the victor clutching its vole prize leaving the crouching cat defeated. I often wonder who was the more astonished at the audacity of those birds - me or the cat. Janet Kirkham Brinscall Lancashire Size does matter I think Kenny Taylor may be confused about sizes in his article about Atlantic salmon returning to spawn A leap into the light September . He mentions a fish of over 30cm long hurling itself upwards at the weir but as I understand it the average Atlantic salmon returning from the sea measures 70-76011 about 27-30 inches in old money . Even a grilse -which has spent only one year at sea - will be roughly 5o-6ocm long. Michael Foden Via email Spindle fears Your ID Parade of wild fruits Highlights September was a little misleading in suggesting that some fruits are edible to humans as well as to wildlife. While the poisonous character of black bryony and deadly nightshade was mentioned the toxic nature of spindle fruits was not. I just wanted to flag this up for my own peace of mind. Ann Bowen-Jones Via email .