Tuesday, December 16, 2025

Amphibians on earth: However, amphibians on other planets might be different in some ways than those on earth

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Amphibian - Definition, Examples, Characteristics, and Life Cycle
Amphibians are classified by their "double life" (Greek for amphi-bios), starting as aquatic larvae (tadpoles/gills) and transforming through metamorphosis into land-dwelling adults with lungs and legs, though some exceptions exist. Key traits include moist, porous skin for breathing (cutaneous respiration), being cold-blooded (ectothermic), laying soft, jelly-like eggs in water, and belonging to the vertebrate class Amphibia (frogs, toads, salamanders, newts, caecilians).  
Key Classifying Characteristics:
  • Life Cycle: Most undergo metamorphosis from aquatic larvae (gills) to terrestrial adults (lungs, limbs). 

Adaptations & Vulnerabilities:
  • Land/Water: Adapted to live in both environments, requiring moist habitats. 

Amphibians | National Wildlife Federation
Amphibians are a class of cold-blooded vertebrates made up of frogs, toads, salamanders, newts, and caecilians (wormlike animals w...
National Wildlife Federation
Amphibian Pictures & Facts - National Geographic
Amphibians also have special skin glands that produce useful proteins. Some transport water, oxygen, and carbon dioxide either int...
National Geographic
Amphibians for Kids | What is an amphibian? Learn the ...
Sep 24, 2020 — amphibians have you ever sorted some of your things into different groups maybe you sort clothes by color or style or ...
YouTube · 
Learn Bright
What is an “Amphibian”?
Some secrete mucous through the skin, which makes them slimy. Others have dry, bumpy skin, like toads. One thing that all amphibia...
Commonwealth of Pennsylvania (.gov)
Children's Resources: Amphibians - The Animal Medical Center
Amphibian Characteristics. How can you tell if an animal is an amphibian? Thin, Porous Skin. Amphibian skin is porous, which means...
The Animal Medical Center
What is the exact definition of an amphibian, and what are ... - Quora
Mar 24, 2017 — * Zulakha Rasheed. BS (Hons) in Environmental Science & Urdu Poetry, University of Gujrat. · 7y. The word amphibian c...
Quora
What is an amphibian? Amphibian characteristics and other ... - Twinkl
You can help children to learn and remember different amphibian characteristics and other living things with this handy Poster Set...
Twinkl
Let’s learn about amphibians
Jun 14, 2022 — Amphibians are known for their ability to live double lives, starting as water dwellers and then becoming landlubbers.
Science News Explores
Amphibian - Simple English Wikipedia, the free encyclopedia
Adaptations * Respiration. Amphibians like to live near freshwater in warm weather. There have also been species which live in fo...
Wikipedia

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Give me examples of amphibians
Explain their dual life cycle
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Amphibians are ectothermic, anamniotic, four-limbed vertebrate animals that constitute the class Amphibia.
amphibians from en.wikipedia.org
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There are about 5,500 known amphibian species, divided into three main groups: salamanders and newts, caecilians, and frogs and toads. The largest amphibian is ...
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Amphibians are cold-blooded vertebrates (vertebrates have backbones) that don't have scales. They live part of their lives in water and part on land.
amphibians from kids.nationalgeographic.com
Amphibians are a class of cold-blooded vertebrates made up of frogs, toads, salamanders, newts, and caecilians (wormlike animals with poorly developed eyes).
amphibians from www.nwf.org
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Amphibians are usually recognized by their moist sometimes slimy skin which can be smooth or bumpy.
10:47
Amphibians & Reptiles in Winter
1.2K+ views · 1 week ago
KSTP 5 Eyewitness News · YouTube
Twin Cities-based broadcasting company
1:18
Glass frogs are small, fascinating amphibians known for their translucent skin, which makes many of their internal organs—like the heart and intestines—visible through their belly. They belong to the family Centrolenidae and are mostly found in the rainforests of Central and South America, especially near streams where they lay their eggs. The transparency helps them camouflage from predators by blending in with leaves and light
1.4K+ likes · 6 days ago
didyouknow
Instagram
28:24
Herping South Africa! Rubber Frogs, Crocodiles, and Mega Fauna!
18.1K+ views · 1 week ago
NKFherping · YouTube
Amphibian & reptile enthusiast
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No toads were harmed in the making of this video. 📏 This baby Arizona toad, or toadlet, was measured by ARC Biologists as a part of our standard procedures for collecting data during wildlife surveys. But you might be wondering, why does the measurement of a toadlet matter? Isn’t just knowing that it’s a baby enough? While it’s always delightful to find the young of any native species while surveying, knowing the precise measurements of the individuals is necessary for a number of reasons, like:​ 1. Some species have known growth rates. Therefore, if we know frogs can get to be 1 inch in length by the time they’re a year old, depending on conditions, measuring them can help us estimate their ages and the time that they hatched.​ 2. Knowing the season that hatchlings emerged is helpful for understanding when adults in that region are opting to breed. Are all of the young we spot in the fall about 6 months old? Well then, we can investigate more to see if the adults mainly breed in t
22.6K+ likes · 2 weeks ago
arcprotects · Instagram
Amphibian & reptile conservation org
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Connecting people around the world by synthesizing and sharing information about amphibians to enable research, education, and conservation.
Amphibians - frogs, toads, salamanders - are a critical part of nature as both predator and prey. Many species of amphibians migrate to new habitat and ...
amphibians from armi.usgs.gov
Most amphibians live their lives in two different stages in two different environments...water and land, first as tadpoles and then as terrestrial adult frogs.
amphibians from www.burkemuseum.org
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  • Skin: Thin, moist, scaleless, and permeable, allowing for skin breathing (cutaneous respiration) and water absorption, but making them vulnerable to dehydration. 
  • Reproduction: Lay soft, gelatinous eggs in water, lacking a hard shell. 
  • Physiology: Cold-blooded (ectothermic), meaning their body temperature matches their environment. 
  • Respiration: Larvae use gills; adults use lungs and skin; some (like lungless salamanders) never develop lungs. 
  • Vertebrates: They have backbones. 
  • Group Diversity: Includes frogs and toads (Anura), salamanders and newts (Caudata), and caecilians (Gymnophiona). 
  • Defense: Skin glands produce useful proteins, some toxic (like poison dart frogs), others antibacterial, often with bright warning colors. 
  • Sensitivity: Their permeable skin and porous eggs make them highly sensitive to pollution and habitat changes, making them key environmental indicators. 
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