Good overview of things evolutionary Also learned why elephants have big ears. DNF Sorry, but I was super bored with it I enjoy biology and evolution as much as the next person, but I found the writing really dry. Free Book ♃ Why Elephants Have Big Ears: And Other Riddles from the Natural World ⚒ Why Elephants Have Big Ears Is The Result Of One Man S Lifelong Quest To Understand Why The Creatures Of The Earth Appear And Act As They Do In A Wry Manner And Personal Tone, Chris Lavers Explores And Solves Some Of Nature S Most Challenging Evolutionary Mysteries, Such As Why Birds Are Small And Plentiful, Why Rivers And Lakes Are Dominated By The Few Remaining Large Reptiles, Why Most Of The Large Land Dwellers Are Mammals, And Many I m probably biased because he s my lecturer but I do think Why Elephants have big ears is amazing Everything is explained really well and it is enjoyable to read Lavers has some brilliant ideas and projects them in strangely wonderful ways. SUPERB, Why Elephants Have Big Ears was a great non fiction read If you are looking for a book strictly about elephants then this book is not for you I was quite disappointed when I found out the secret of Elephant s monstrous ears within the first twelve pages However, author Chris Lavers, does do an excellent job of describing the adaptations of numerous animals The way Chris interacts with his readers using many different techniques to explain adaptations such as visual learning, hand on teaching, and small illustrations made following the complex formulas and law of physics he uses in the book easier to understand This book was very informational and a great book to open and broaden your knowledge I would recommend this book to anyone interested in learning quickly the basics of adaptation or whom might be interested in any adaptations at all There may also be a surprising conviction about dinosaurs that movies and TV shows falsely advertise daily Read this book and I guarantee you will learn something new. Subtitled Nature s Engine and the Order of Life, this book seeks to show us in terms of energy, mass and volume how and why forms of animal life past and present differ from one another.A simple illustration is used to introduce geometric principles a melon twice the length of an orange has a surface area four times that of the orange, but it also has eight times the volume and eight times as much juice Hence a 4cm fish only has to grow 1cm longer to double its weight.These principles explain such matters as why ostriches can t grow large enough wings to support them in flight, why large animals conserve heat better than a number of smaller animals of the same total weight, and what benefits may fall to light creatures in certain environments and heavy creatures in others.Fascinating information is presented which the reader may not have previously considered The giraffe, for instance, has a blood pressure of 300mm, in order to pump blood up to its head But how does this not explode the fragile capillaries in its lungs The division of mammal hearts solves this problem, as the right half pumps blood to the lungs and thence to the left half of the heart, which has thicker walls of muscle and thus pumps blood at a much stronger pressure around the body Coldblood hearts are differently structured.The author is a lecturer at the University of Nottingham He points out that, among large creatures, warmbloods chiefly inhabit land, with a very few species of coldblood such as Komodo dragons whereas freshwater is dominated by coldbloods such as crocodiles, with a very few species such as manatees representing warmbloods If a preserved dinosaur heart could be found, that would prove once and for all whether they were warm or cold blooded The author puts forward both sides of the argument and explains the differing metabolic engines dinosaurs would have had in either case.I differ with the author over a couple of points He says that Grevy s zebra is the heaviest equine, followed by the horse Even the largest zebra cannot weigh than an eighteen hand Clydesdale However in general I would recommend this book for those interested in biology of all sorts or in the loss of biodiversity in today s threatened environment.Or for those who enjoy fascinating facts there is one cold blooded mammal, the naked mole rat of Africa, living entirely underground with its body heat at the air temperature of its tunnels The amazing variety of poisonous plants and invertebrates in Australia may be directly related to the low soil fertility level Birds conduct breath through their hollow bones The smallest warmbloods Kitti s hognosed bat, Cuban bee hummingbird and Etruscan shrew weigh two grams, though reptiles and amphibians are commonly smaller.And the answer to the query in the title is that, given the ear size of ice age mammoths compared to elephants and their respective environments, the elephant s big ears are heat radiators. Why Elephants Have Big Ears is an incredible gem that I ve wanted to reread from the moment I turned the last page No summary I ve ever read about this book has done it justice It is a rather scientific but never dry account of how even the most innocuous animals have extremely specific adaptations This isn t a collection of specific trivia nor is it riddled with romantic speculation Rather, Lavers approach is aimed at big picture thinking Lavers hands you the tools to understand for yourself how animals survive in their environments, pointing out the subtleties of physiology that we as very adaptable creatures never put much thought into There s an extensive discussion on how warm bloodedness likely developed and how ecology directly shapes physiology There is so much to talk about, but I could not possibly do it all justice Just pick up the book for yourself and you will see. I m struggling through this book It s fascinating but very much physics oreiented and may be a little too scientific for me.
This was an engaging book on a topic that I honestly hadn t really considered before, although once I realized the question of the book I was all in It was an interesting exploration of the theories surrounding warm bloodedness vs cold bloodedness, starting with a question with a well, duh answer Q Why do elephants have big ears A thergulation and using that question and answer as a doorway into the rabbit hole of comparative morphology, survival strategies, dinosaurs, birds, competition, and invasive species all involving thergulation as a central theme While my eyes did glaze over through some sections, that s unfortunately a risk in any book after a certain level of scientific involvement This book would be readable for people without a background in biology, but they may need to look up a few things as they are mentioned in the book for a better understanding of some topics Overall it was an interesting book exploring a topic that I and I m sure many others take for granted, and I m glad I took the time to read it. Why Elephant Have Big Ears was a fun and informative read If you are an animal lover and are curious about how our world along with its creatures evolved through times, then you will enjoy this book Chris Lavers used easy to understand scientific terminology, so even if you are not a biology major, you can still appreciate and be enlightened of our animal friends.