{"product_id":"2940151023764","title":"More Letters of Charles Darwin Volume 2","description":"I am sorry to say that I cannot give you the least aid, as I have never\u003cbr\u003eattended to any mechanical subjects. I should doubt whether it would be\u003cbr\u003epossible to train birds to fly in a certain direction in a body, though\u003cbr\u003eI am aware that they have been taught some tricks. Their mental powers\u003cbr\u003eare probably much below those of mammals. It is said, and I suppose\u003cbr\u003etruly, that an eagle will carry a lamb. This shows that a bird may have\u003cbr\u003egreat power for a short distance. I cannot remember your essay with\u003cbr\u003esufficient distinctness to make any remarks on it. When a man is old and\u003cbr\u003eworks hard, one subject drives another out of his head.","brand":"rambo","offers":[{"title":"Default Title","offer_id":47109762056432,"sku":"2940151023764","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940151023764_p0.jpg?v=1763758386","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940151023764","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}