Did you know?<\/strong><\/p>\n The country with the most species of reptiles is Australia<\/a><\/strong> \u2013 with an amazing 1,078 different species. The USA is 8th with 530 species, while the UK is fairly near the bottom with just six native species of reptiles.<\/p>\n <\/p><\/div> \u00a0<\/p>\n The main features that amphibians and reptiles share is that they are both vertebrates (animals that have an endoskeleton) and are both \u2018cold-blooded\u2019 or ectothermic. Many people think that amphibians and reptiles look very similar as they both lack the fur that most mammals have, or feathers like birds.<\/p>\n They also have similar behaviour in the wild as they need to bask in warm, sunny spots to heat up their bodies, and in many regions both groups hibernate<\/a><\/strong> for the winter. This makes them quite distinct from other vertebrate animals. Both groups are also found in similar habitats in the UK \u2013\u00a0they can often be found underneath or basking on top of rocks, logs or other sheltered environments.<\/p>\n All of these factors have led them to be grouped together under the joint term \u2018herpetofauna\u2019, and the study of both amphibians and reptiles is known as herpetology. While there are some clear differences between amphibians and reptiles, often they are used interchangeably in the media, potentially increasing the confusion people have about the two groups.<\/p>\n Frogs and toads are amphibians, more specifically a branch of the amphibian evolutionary tree called \u2018anurans\u2019. They are separated from the modern reptile branch of the evolutionary tree \u2013 the \u2018squamates\u2019 \u2013 by around a million years of evolution<\/a><\/strong>.<\/p>\n There are a couple of clear differences between\u00a0 amphibians and reptiles, from their anatomy to their behaviours and development cycles.<\/p>\n Did you know?<\/strong><\/p>\n The smallest reptile in the world<\/a><\/strong>\u00a0is as small as a sunflower seed.<\/p>\n The largest reptiles in the world include reticulated pythons (Python reticulatus<\/em>) and saltwater crocodiles\u00a0<\/a><\/strong>.<\/p>\n The largest amphibians<\/a><\/strong> are the\u00a0giant salamanders of the Far East \u2013 but which one is king?<\/p>\n The smallest amphibian \u2013 and also the smallest frog \u2013 is the Paedophryne amauensis<\/em><\/p>\n \u00a0<\/p>\n <\/p><\/div> One of the most apparent differences between amphibians and reptiles is the difference in skin. Reptiles are covered in hard, keratinous scales that protect them, whereas amphibians have soft, absorbent skin that needs to be kept moist.<\/p>\n When amphibians (in particular, newts) are on land, their skin can look velvety, which can lead to them being confused with reptiles. Amphibian skin is a really interesting adaptation, as it is very porous and allows gaseous exchange \u2013 they can \u2018breathe\u2019 through it. Both amphibians and reptiles shed, or \u2018slough\u2019 their skin.<\/p>\n The other factor that really shows the difference between reptiles and amphibians is their development. Reptiles have a couple of methods of producing offspring.<\/p>\n While some reptile species lay eggs there are also those who \u2018give birth\u2019 to live young after incubating them internally like the adder. <\/a><\/strong><\/p>\n Amphibians lay eggs or spawn in water, which hatch into aquatic larvae or tadpoles which then metamorphose into a terrestrial juvenile, which eventually grows into a mature adult.<\/p>\n <\/p><\/div> <\/section> While adult amphibians are able to breathe air and live on land, they still have to return to the water to breed and must keep their skin moist. Reptiles do not metamorphose and most spend their lives on land.<\/p>\n Do they display different behaviours?<\/strong><\/p>\n Amphibians have very different behaviour to their scaly cousins, due to their dual life both on the land and under the water. As a result, amphibians (in particular frogs and toads) are more likely to be spotted in the spring and summer basking in ponds or other freshwater habitats, whereas reptiles are most often found basking on dry surfaces such as rocks, logs or bare patches of ground.<\/p>\n In addition, amphibians are generally slower-moving than reptiles \u2013 if you disturb a basking snake or lizard, it will usually scuttle or slither away much faster than a newt or toad that will crawl, or in the frog\u2019s case, hop.<\/p>\n These behaviours are of course impacted by temperature, and the weather can have a large impact on amphibian and reptile behaviours. Overall though, amphibians are more resistant to lower temperatures than reptiles and in the UK, \u2018spawning season\u2019 for amphibians tends to be before reptile breeding season. This means that amphibian activity begins to increase earlier in the year (usually with the end of winter or beginning of spring) than reptiles which begin to emerge more towards the middle or end of spring.<\/p>\n Did you know?<\/strong><\/p>\n Brazil has the most species of amphibian<\/a><\/strong> with 1,022 different species.<\/p>\n The USA is 12th with\u00a0313 species while the UK has just seven species of amphibian<\/a><\/strong>.<\/p>\n And\u00a0Greenland has none!<\/p>\n <\/p><\/div> Worldwide, amphibians and reptiles vary wildly in the habitats they occupy and there is a large degree of variation within each group. In the UK, broadly speaking, our native amphibians and reptiles inhabit similar areas. All of our native herpetofauna species can be found in lowland heath, a habitat that is increasingly rarer than tropical rainforest.<\/p>\n Amphibians need to keep their skin damp and must have access to bodies of freshwater whereas many reptiles are not as closely associated with water although there are exceptions like the grass snake<\/a><\/strong>, which hunts aquatic prey in ponds and other freshwater habitats, the anaconda<\/a><\/strong> who loves the South American swamps \u2013 and of course sea snakes.<\/p>\n![\""Close-up\"](\""https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/23\/2023\/05\/GettyImages-157559442-197f634.jpg?quality=45&resize=556,556"\" "\\"\"How\\"")
<\/div><\/div> <\/div> <\/section>Are there any similarities between amphibians and reptiles?<\/strong><\/h2>\n
Why aren\u2019t frogs and toads classed as reptiles?<\/strong><\/h3>\n
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<\/div><\/div> <\/div> <\/section>What\u2019s the difference between reptiles and amphibians?<\/strong><\/h2>\n
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<\/div><\/div> <\/div> <\/section>How do their habitats differ?<\/strong><\/h2>\n
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