Динозаврлардың жаңа эволюциясы: Балама әлем

Book by Dougal Dixon

The New Dinosaurs: An Alternative Evolution is a 1988 speculative evolution book written by Scottish geologist and palaeontologist Dougal Dixon and illustrated by several illustrators including Amanda Barlow, Peter Barrett, John Butler, Jeane Colville, Anthony Duke, Andy Farmer, Lee Gibbons, Steve Holden, Philip Hood, Martin Knowelden, Sean Milne, Denys Ovenden and Joyce Tuhill. The book also features a foreword by Desmond Morris. The New Dinosaurs explores a hypothetical alternate Earth, complete with animals and ecosystems, where the Cretaceous Paleogene extinction event never occurred, leaving non avian dinosaurs and other Mesozoic animals an additional 65 million years to evolve and adapt over the course of the Cenozoic to the present day. The New Dinosaurs is Dixon's second work on speculative evolution, following After Man (1981). Like After Man, The New Dinosaurs uses its own fictional setting and hypothetical wildlife to explain natural processes with fictitious examples, in this case the concept of zoogeography and biogeographic realms. It was followed by another speculative evolution work by Dixon in 1990, Man After Man. Although criticised by some palaeontologists upon its release,

The New Dinosaurs explores an imagined alternate version of the present day Earth as Dixon imagines it would have been if the Cretaceous Paleogene extinction event had never occurred. As in Dixon's previous work, After Man, ecology and evolutionary theory are applied to create believable creatures, all of which have their own binomial names and text describing their behaviour and interactions with other contemporary animals. Most of these animals represent surviving dinosaurs, pterosaurs and plesiosaurs, which Dixon discusses through biogeographic realms, divisions of the Earth's land surface based on distributional patterns of animals and other lifeforms. In total, about sixty animals are described in the book, about half of the amount featured in After Man, with examples including a widespread group of tree climbing coelurosaurian theropods called "arbrosaurs", huge striding and terrestrial pterosaurs such as the giraffe like "lank", colonial pachycephalosaurs, descendants of the Mesozoic hadrosaurs called "sprintosaurs" adapted to a new lifestyle on the grass covered plains of North America, amphibious hypsilophodonts, flamingo like coelurosaurs and iguanodonts capable of jumping like kangaroos. In the far north, large migratory birds such as the "tromble" with legs almost like tree trunks, roam the land. In terms of predators, the coelurosaurs dominate in terms of number and diversity, often having unique adaptations. For instance, the apex predator of the South American pampas, the coelurosaurian "cutlasstooth", has evolved huge, cutting teeth to allow it to prey upon large sauropods. The pampas is also home to the last of the tyrannosaurids, the large scavenging "gourmand". There are also various dromaeosaurids, including the "jinx", adapted to mimic larger herbivorous dinosaurs through scent and appearance. The world's oceans are home to various pterosaurs, such as seagull like and penguin like forms. There is also the "whulk", a massive whale like pliosaur that feeds exclusively on plankton. The "kraken", an enormous ammonite, uses specialized tentacles to entangle and sting anything that comes near it.

Following the success of his previous speculative evolution book After Man in 1981, Dixon realized that there was a market for popular level books which use fictional examples and settings to explain actual factual scientific processes. After Man had explained the process of evolution by creating a complex hypothetical future ecosystem, The New Dinosaurs was instead aimed at creating a book on zoogeography, a subject the general public was quite unfamiliar with, by using a fictional world in which the non avian dinosaurs had not gone extinct to explain the process. The dinosaurs and other animals in The New Dinosaurs were heavily influenced by the paleontology of its time. The ideas of the Dinosaur Renaissance – replacing the older ideas of dinosaurs as dumb and slow creatures with active, agile and bird like animals – are heavily used in the book. According to Dixon's own website, "Dinosaur science has moved on since first publication in 1988, and the original introduction of the book has aged considerably." Dixon has worked to revise and update this information for more recent international editions of The New Dinosaurs.

The New Dinosaurs became a bestseller upon its release and like its predecessor After Man, The New Dinosaurs garnered positive reviews from critics. William F. Allman, writing for the U. S. News & World Report, praised the fact that Dixon had extrapolated his designs from real dinosaur ancestors and concluded that although whimsical at times, most dinosaur researchers would agree with the book insofar that had the asteroid that brought their extinction not hit the planet, dinosaurs would probably dominate the planet to this day. Reviews in Smithsonian, School Library Journal and Booklist were also positive, with reviewers calling the book an "alternative history of the world" and a "quintessential 'what if' book for dinosaur enthusiasts". Many of the animals featured in the book were criticized by paleontologists and science writers, particularly in that so many of the animals are entirely convergent with actual modern day animals. In this capacity, the "lank", a four legged, terrestrial and grazing pterosaur derived from the Cretaceous family Azhdarchidae, has been seen by some writers as perhaps the worst offender. In a 1990 review of the book, researcher Gregory S. Paul called the creature "perhaps the worst beast in the book" and "unbelievable", pointing out that he thought it was infeasible that pterosaurs would evolve into giraffe like animals before the more dominant and already terrestrial dinosaurs. In 1992, researcher David Unwin echoed the same sentiment, viewing four legged and grass eating pterosaurs as highly unlikely. In 2008, British paleontologist and science writer Darren Naish offered a more redeeming look at the animal, pointing out that if pterosaurs were to become terrestrial, azhdarchids were the most likely group to do so and that azhdarchids would have used a gait similar to that of giraffes when walking. Paul, Unwin and Naish all pointed out that the sheer diversity seen in pterosaurs within the book is somewhat unlikely as the group was low in diversity at the point of the Cretaceous Paleogene extinction event, the azhdarchids being the only living group. Paul even went on to state that he considered pterosaurs surviving into the Cenozoic "doubtful" even if the extinction event had not happened.

Many of the hypothetical animals created for The New Dinosaurs ended up resembling actual Mesozoic creatures that have since been discovered, both in appearance and in behaviour. In 2008, The New Dinosaurs was adapted into a Japanese manga series by Tokyo based company Diamond.