Table of Contents
- 1 What do crocodiles have in common with mammals?
- 2 Are crocodiles related to mammals?
- 3 Is a crocodile a mammal or amphibian?
- 4 How are crocodiles and alligators similar?
- 5 What traits do crocodiles and birds share?
- 6 What traits do birds and crocodiles have in common?
- 7 How are crocodiles similar to mammals?
- 8 What are the characteristics of a crocodile?
What do crocodiles have in common with mammals?
Answer: Presence of four-chambered heart is common in crocodile and all mammals. A crocodile is a large amphibious reptile. Like alligators, crocodiles are part of the order Crocodylia, which is a group of reptile that includes birds and long-extinct dinosaurs.
Crocodile, just like birds and mammals, are a separate class, that has been derived from reptiles. A similar lineage lead to crocodiles evolving a four-chambered heart, although they followed a different pathway and kept both systemic arches. The earliest crocodiles were small, terrestrial, two-legged sprinters.
What animals are crocodiles most closely related to?
Turtles, not birds, have been found to be the closest relatives of crocodiles and alligators, according to an analysis of the largest available collection of reptile genes.
What are crocodiles most related to?
(Crocodilians are actually more closely related to birds and dinosaurs than they are to other reptiles, i.e., lizards, snakes, and turtles.)
Is a crocodile a mammal or amphibian?
Crocodiles are very similar to amphibians but hey are not termed under amphibians. In fact they are a part of the reptile family.
How are crocodiles and alligators similar?
One obvious similarity between alligators and crocodiles is that both animals are reptiles. They are cold-blooded creatures that expend little energy when they move. They cannot regulate their own internal body temperature, and must rely on external heat sources such as the sun.
Why crocodile is not an amphibian?
Most amphibians have complex life cycles with time on land and in the water. Their skin must stay moist to absorb oxygen and therefore lacks scales. Reptiles are turtles, snakes, lizards, alligators and crocodiles.
Which of the following features would a common ancestor of birds mammals and crocodiles have?
Archosauria
| Crurotarsi | † Parasuchia † Ornithosuchidae Suchia |
|---|---|
| Ornithodira | †?Scleromochlus † Pterosauria Dinosauromorpha |
A. Birds share many characteristics with reptiles such as being vertebrates, having scales on parts of their bodies, and laying amniotic eggs with shells.
What traits do birds and crocodiles have in common?
Birds, crocodiles and dinosaurs have much in common – including, it turns out, their breath. The hyper-efficient breathing system of birds is shared with alligators, and probably evolved in archosaurs, the common ancestor of crocodilians, birds and dinosaurs.
What is the most distinguishing characteristics of mammal?
Mammals have hair or fur; are warm-blooded; most are born alive; the young are fed milk produced by the mother’s mammary glands; and they have a more complex brain than other animals.
Is a crocodile a reptile or amphibian?
Crocodiles, alligators, turtles, snakes, lizards and slow worms are all reptiles.
How are crocodiles similar to mammals?
The only resemblance a crocodile would bear with a mammal is that both animals are tetrapods which means they belong to a clade of animals characterized by possessing four limbs or are descended from vertebrates that possessed four limbs at one point or another in their evolutionary lineage.
What are the characteristics of a crocodile?
Crocodilians are the most advanced surviving reptiles; many of their features are more similar to mammals or birds than to other reptiles. There are only a few members, and all modern crocodilians have adapted to a semi-aquatic life, although as recently as 3000 years ago there may have been a terrestrial crocodilian species on New Caledonia.
What is the size of the smallest crocodile?
The smallest crocodile is the dwarf crocodile. It grows to about 5.6 feet (1.7 meters) in length and weighs 13 to 15 pounds (6 to 7 kilograms). The largest crocodile is the saltwater crocodile. The largest one ever found was 20.24 feet (6.17 m) long.
Are there other dinosaurs that look like crocodiles?
Before the first true crocodiles emerged on the prehistoric scene, there were the phytosaurs (plant lizards): archosaurs that looked very much like crocodiles, except that their nostrils were positioned on the tops of their heads rather than the tips of their snouts.