Crocodile bird and relationship quiz

crocodile bird | Taxonomy & Facts |

crocodile bird and relationship quiz

2) By reference to the tree above, which of the following is an accurate statement of relationships? a) A crocodile is more closely related to a lizard than to a bird. This quiz includes a number of multiple-choice questions you can use to test yourself a) A crocodile is more closely related to a lizard than to a bird 7) Which of the four trees above depicts a different pattern of relationships than the others?. Which of the following relationships is an example of mutualism? A lion eats a Your answer: . Answer: D - A bird eats food particles from a crocodile's teeth.

So a reptile is an animal that is ectothermic and has scales, and birds would not be reptiles.

crocodile bird and relationship quiz

In the 's, a biologist named Willi Hennig came up with another classification system that he called phylogenetics. In this system, organisms are grouped only by their ancestry, and characteristics are only used to discover the ancestry.

So a reptile is any animal descended from the original group called reptiles.

Birds vs. Crocodiles - National Geographic

Because both birds and mammals share ancestors sometimes referred to as reptiles, birds as well as mammals would be reptiles. Usually what people mean when they say birds are reptiles is that birds are more closely related to reptiles than anything else, and this is true in a way, but there are many types of reptiles.

Birds are most closely related to crocodiles.

Pluvianidae - Egyptian Plover - Bird Watching,Resources for Bird Watching by the Fat Birder

To understand this, we should look at some history. The first groups of reptiles evolved about million years ago. About 40 million years later, very quickly by geologic standardsa group of reptiles called therapsids branched off, which eventually became modern mammals.

Other groups of reptiles split off over the next million years, and one branch called the dinosaurs were very successful. These dinosaurs were only distantly related to modern snakes, lizards, and turtles, groups that had split off at different times.

crocodile bird and relationship quiz

But 65 million years ago there was a massive extinction event, and all dinosaurs were killed except for a single group of feathered dinosaurs. These evolved over the next 65 million years into modern birds. So birds aren't just closely related to dinosaurs, they really are dinosaurs!

crocodile bird and relationship quiz

This is what most people mean when they say that birds are reptiles, although technically according to the phylogenetic system mammals are also reptiles. It is a striking and unmistakable species. The 19cm to 21cm long adult has a black crown, back, eye-mask and breast band.

crocodile bird and relationship quiz

The rest of the head is white. The remaining upper plumage is blue-grey, and the underparts are orange. The longish legs are blue-grey.

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In flight, it is even more spectacular, with the black crown and back contrasting with the grey of the upper parts and wings.

The flight feathers are brilliant white crossed by a black bar.

  • Crocodile bird
  • Pluvianidae - Egyptian Plover
  • 5 amazing symbiotic animal relationships you didn't know about

From below, the flying bird is entirely white, apart from the orange belly and black wing bar. After landing, members of a pair greet each other by raising their wings in an elaborate ceremony that shows off the black and white markings.

The sexes are similar, but juveniles are duller and the black marking are intermixed with brown. This usually very tame bird is found in pairs or small groups near water.

crocodile bird and relationship quiz