The crocoduck is a fictitious hybrid animal with the head of a crocodile and the body of a duck proposed in 2007 by young-Earth creationists Ray Comfort and Kirk Cameron to be an animal that should exist, were their misconceptions about the theory of evolution true. The animal became an internet meme used to ridicule common misrepresentations of evolution, namely, that the theory predicts forms intermediate between any two currently living organisms.
In 2007, young-Earth creationists Kirk Cameron and Ray Comfort participated in a televised debate, parts of which were aired on ABC Nightline , on the existence of God. Kirk Cameron held up composite pictures of what "we imagined would be genuine species-to-species transitional forms. They called one a 'crocoduck' and another was called a 'birddog'." The "crocoduck" was an animal with the head of a crocodile and the body of a duck, the "bullfrog" was an animal with the head of a bull and the body of a frog, and the "sheepdog" was an animal with the head of a dog and the body of a sheep. These pictures were used as a straw man argument to ridicule the theory of evolution as represented by Cameron and Comfort. [1]
This claim was widely publicized and ridiculed as an example of creationist misconceptions. In The Greatest Show on Earth: The Evidence for Evolution , the evolutionary scientist Richard Dawkins included a section titled 'Show me your crocoduck!' in which he compared this to the question put by another creationist as to why there was no transitional fossil "fronkey" between frogs and monkeys, and described it as a warped misunderstanding of evolution. Modern species share a common ancestor, but are neither descended from each other nor from some crude composite chimera, and ducks are not descended from crocodiles. An illustration shows the Crocoduck Tie, designed by web designer Josh Timonen in commemoration of this misconception. [2] Dawkins has stated that "There are only two in existence. PZ Myers has one. I'm proud to say I have the other." [3] Dawkins' tie made a prominent appearance on an episode of The Colbert Report . [4]
In 2003, [5] new fossils of several types of ancient crocodile were found, including one with a flat broad snout reminiscent of a duck's bill, though it has teeth and is obviously crocodilian rather than bird-like. This genus has been named Anatosuchus or "DuckCroc", and it had an upright stance rather than the sprawled legs of modern crocodiles. [6] [7] Pelagornithid seabirds have serrated beaks that resemble teeth and have been recovered as fowl. In 2014, Paleontologist Paul Sereno described the semi-aquatic reconstruction of Spinosaurus as a "half duck, half crocodile". [8] In addition, the feathered dinosaurs Halszkaraptor and Natovenator show adaptations for swimming and diving similar to modern waterbirds.
The most recent common ancestor of duck and crocodiles is the base of the Archosauria clade, and was probably superficially similar to modern crocodiles. No fossil of this common ancestor are known to exist, but groups such as Phytosauria and Proterochampsia are near to the base of the archosaur clade. Although the phylogenetic distance from these groups to ducks and crocodiles are equal, in form and likely behaviour they are more similar to crocodiles. [ citation needed ] For Phytosauria at least, it was due to parallel evolution, with phytosaurs and crocodilians adapting to similar semi-aquatic predator niches.
The author and illustrator Chih-Yuan Chen from Taiwan produced the bestselling children's story Guji Guji in 2004, [9] a modern-day twist on The Ugly Duckling , in which a crocodile egg rolls into a duck's nest and is raised in a brood of ducklings, [10] growing up as a "crocoduck" who thinks he is "not a bad crocodile", but "not exactly a duck either." [11]
Crocodilia is an order of mostly large, predatory, semiaquatic reptiles, known as crocodilians. They first appeared 94 million years ago in the Late Cretaceous period and are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria. Members of the order's total group, the clade Pseudosuchia, appeared about 250 million years ago in the Early Triassic period, and diversified during the Mesozoic era. The order Crocodilia includes the true crocodiles, the alligators and caimans, and the gharial and false gharial. Although the term 'crocodiles' is sometimes used to refer to all of these, crocodilians is a less ambiguous vernacular term for members of this group.
Young Earth creationism (YEC) is a form of creationism which holds as a central tenet that the Earth and its lifeforms were created by supernatural acts of the Abrahamic God between approximately 6,000 and 10,000 years ago. In its most widespread version, YEC is based on the religious belief in the inerrancy of certain literal interpretations of the Book of Genesis. Its primary adherents are Christians and Jews who believe that God created the Earth in six literal days. This is in contrast with old Earth creationism (OEC), which holds literal interpretations of Genesis that are compatible with the scientifically determined ages of the Earth and universe. It is also in contrast to theistic evolution, which posits that the scientific principles of evolution, the Big Bang, abiogenesis, solar nebular theory, age of the universe, and age of Earth are compatible with a metaphorical interpretation of Genesis.
Archosauria is a clade of diapsids, with birds and crocodilians as the only living representatives. Archosaurs are broadly classified as reptiles, in the cladistic sense of the term, which includes birds. Extinct archosaurs include non-avian dinosaurs, pterosaurs, and extinct relatives of crocodilians. Modern paleontologists define Archosauria as a crown group that includes the most recent common ancestor of living birds and crocodilians, and all of its descendants. The base of Archosauria splits into two clades: Pseudosuchia, which includes crocodilians and their extinct relatives, and Avemetatarsalia, which includes birds and their extinct relatives.
Ray Comfort is a New Zealand-born Christian minister and evangelist who lives in the United States. Comfort started Living Waters Publications, as well as the ministry The Way of the Master, in Bellflower, California, and has written several books.
Sarcosuchus is an extinct genus of crocodyliform and distant relative of living crocodilians that lived during the Early Cretaceous, from the late Hauterivian to the early Albian, 133 to 112 million years ago of what is now Africa and South America. The genus name comes from the Greek σάρξ (sarx) meaning flesh and σοῦχος (souchus) meaning crocodile. It was one of the largest crocodile-like reptiles, with the largest specimen of S. imperator reaching approximately 9–9.5 metres (29.5–31.2 ft) long and weighing up to 3.45–4.3 metric tons. It is known from two species, S. imperator from the early Albian Elrhaz Formation of Niger and S. hartti from the Late Hauterivian of northeastern Brazil, other material is known from Morocco and Tunisia and possibly Libya and Mali.
Deinosuchus is an extinct genus of alligatoroid crocodilian, related to modern alligators and caimans, that lived 82 to 73 million years ago (Ma), during the late Cretaceous period. The name translates as "terrible crocodile" and is derived from the Greek deinos (δεινός), "terrible", and soukhos (σοῦχος), "crocodile". The first remains were discovered in North Carolina in the 1850s; the genus was named and described in 1909. Additional fragments were discovered in the 1940s and were later incorporated into an influential, though inaccurate, skull reconstruction at the American Museum of Natural History. Knowledge of Deinosuchus remains incomplete, but better cranial material found in recent years has expanded scientific understanding of this massive predator.
Archosauriformes is a clade of diapsid reptiles that developed from archosauromorph ancestors some time in the Latest Permian. It was defined by Jacques Gauthier (1994) as the clade stemming from the last common ancestor of Proterosuchidae and Archosauria ; Phil Senter (2005) defined it as the most exclusive clade containing Proterosuchus and Archosauria.
Protosuchus is an extinct genus of carnivorous crocodylomorph from the Early Jurassic. The name Protosuchus means "first crocodile", and is among the earliest animals that resemble crocodilians. Protosuchus was about 1 metre (3.3 ft) in length and about 40 kilograms (88 lb) in weight.
Phytosaurs are an extinct group of large, mostly semiaquatic Late Triassic archosauriform reptiles. Phytosaurs belong to the order Phytosauria. Phytosauria and Phytosauridae are often considered to be equivalent groupings containing the same species, but some studies have identified non-phytosaurid phytosaurians. Phytosaurs were long-snouted and heavily armoured, bearing a remarkable resemblance to modern crocodilians in size, appearance, and lifestyle, as an example of convergence or parallel evolution. The name "phytosaur" means "plant reptile", as the first fossils of phytosaurs were mistakenly thought to belong to plant eaters.
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree.
Pseudosuchia is one of two major divisions of Archosauria, including living crocodilians and all archosaurs more closely related to crocodilians than to birds. Pseudosuchians are also informally known as "crocodilian-line archosaurs". Despite Pseudosuchia meaning "false crocodiles", the name is a misnomer as true crocodilians are now defined as a subset of the group.
Orthosuchus is an extinct genus of protosuchian crocodyliform that lived during the Early Jurassic, about 196 million years ago. It was first discovered in 1963 in the Red Beds Formation in the Qacha's Nek Province of Lesotho, southern Africa. The characteristics showed on its postcranial skeleton and the skull indicated that it is a Crocodyliform. The finding is significant since some of the characteristics found on this specimen were believed to be absent until Jurassic.
Thecodontia, now considered an obsolete taxonomic grouping, was formerly used to describe a diverse "order" of early archosaurian reptiles that first appeared in the latest Permian period and flourished until the end of the Triassic period. All of them were built somewhat like crocodiles but with shorter skulls, more erect pose and usually somewhat lighter. The group includes the ancestors of dinosaurs, pterosaurs, and crocodilians, as well as a number of extinct forms that did not give rise to any descendants. The term thecodont is still used as an anatomical description of the tooth morphology seen in these species and others.
Jerry Allen Coyne is an American biologist and skeptic known for his work on speciation and his commentary on intelligent design. A professor emeritus at the University of Chicago in the Department of Ecology and Evolution, he has published numerous papers on the theory of evolution. His concentration is speciation and ecological and evolutionary genetics, particularly as they involve the fruit fly, Drosophila.
The Atlas of Creation is a series of creationist books written by Adnan Oktar under the pen name Harun Yahya. Oktar published volume 1 of The Atlas of Creation with Global Publishing, Istanbul, Turkey in October 2006, volumes 2 and 3 followed in 2007, and volume 4 in 2012. The first volume is over 800 pages long. The Turkish original was translated into English, German, Chinese, French, Dutch, Italian, Urdu, Hindi and Russian.
Crocodyliformes is a clade of crurotarsan archosaurs, the group often traditionally referred to as "crocodilians". They are the first members of Crocodylomorpha to possess many of the features that define later relatives. They are the only pseudosuchians to survive the K-Pg extinction event.
Pakasuchus is a genus of notosuchian crocodyliform distinguished by its unusual mammal-like appearance, including mammal-like teeth that would have given the animal the ability to chew. It also had long, slender legs and a doglike nose. Pakasuchus lived approximately 105 million years ago, in the mid-Cretaceous. Fossils have been found in the Galula Formation of Rukwa Rift Basin of southwestern Tanzania, and were described in 2010 in the journal Nature. The type species is P. kapilimai. Pakasuchus means "cat crocodile" in reference to its catlike appearance and probable behavior.
Reptiles arose about 320 million years ago during the Carboniferous period. Reptiles, in the traditional sense of the term, are defined as animals that have scales or scutes, lay land-based hard-shelled eggs, and possess ectothermic metabolisms. So defined, the group is paraphyletic, excluding endothermic animals like birds that are descended from early traditionally-defined reptiles. A definition in accordance with phylogenetic nomenclature, which rejects paraphyletic groups, includes birds while excluding mammals and their synapsid ancestors. So defined, Reptilia is identical to Sauropsida.
The coexistence of non-avian dinosaurs and humans is a recurring motif in speculative fiction. In the real world, dinosaurs have at no point coexisted with humans.
Confractosuchus is a genus of extinct eusuchian crocodyliform from the Cretaceous Winton Formation of Australia. Described as a macro-generalist, Confractosuchus was found with the bones of a juvenile ornithopod dinosaur in its abdomen. It currently contains a single species, Confractosuchus sauroktonos, which literally means "broken dinosaur killer."
#30 Yes, it is a great tie. The Crocoduck Tie, designed by Josh Timonen. There are only two in existence. PZ has one. I'm proud to say I have the other.