- Related Topics:
- Venom
- elapid
- Homoroselaps
- Micrurus
coral snake
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What is a coral snake?
Coral snakes are a group of over 100 species of venomous snakes belonging to the cobra family (Elapidae). They are known for their bright and contrasting color patterns, often featuring combinations of red, black, and yellow or white rings.
These snakes are primarily found in the tropics, with New World species ranging from the southern United States to Argentina. They possess short, hollow fangs that deliver a potent neurotoxic venom. Coral snakes typically prey on other snakes and lizards.
Because many harmless snakes mimic coral snakes, mnemonics such as "Red on yellow, kill a fellow; red on black, friend of Jack" can help differentiate them, though these rhymes are mainly reliable in North America. Most coral snake species are not endangered, but some face critical endangerment.
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Where are coral snakes found in the world?
Coral snakes are small, venomous snakes within the cobra family (Elapidae). They have bright patterns and are found mainly in tropical regions.
New World coral snake species (genera Micruroides and Micrurus) live from the southern United States to Argentina. The eastern coral snake (Micrurus fulvius) inhabits the southeastern U.S., while the Arizona coral snake (Micruroides euryxanthus) lives in the American Southwest.
Old World coral snakes (genera Calliophis, Sinomicrurus, and Hemibungarus) are found in southern Asia and the Philippines. Some classifications include African harlequin snakes (Homoroselaps).
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What do coral snakes look like?
Coral snakes are small, secretive, venomous snakes with bright color patterns. They are members of the cobra family and are generally found in tropical regions. New World coral snakes are typically 16 to 63 inches long. Most species display a tricolor pattern of red, black, and yellow or white rings, though some can be bicolored. Their scales are smooth, and they have short tails.
There are about 80 species of New World coral snakes, but only two species reside in the United States. The eastern coral snake has wide red and black rings separated by narrow rings of yellow. The Arizona coral snake is a small inhabitant of the American Southwest.
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Are coral snakes dangerous, and why?
Yes, coral snakes are dangerous due to their potent neurotoxic venom, which they deliver through short, hollow fangs. They are part of the cobra family and display bright color patterns, typically combinations of red, black, and yellow or white rings.
Coral snakes are secretive and found mainly in the tropics. While some species inhabit the southern United States, it's important to note that identifying them using rhymes like "Red on yellow, kill a fellow" is only reliable in North America. There are also harmless snakes that mimic coral snakes. Most coral snakes feed on other snakes and lizards.
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How do coral snakes hunt and what do they eat?
Coral snakes are secretive, venomous snakes with bright patterns, belonging to the cobra family Elapidae. They possess short, hollow fangs that deliver a potent neurotoxic venom.
Most coral snakes prey on other snakes, especially worm snakes and blind snakes, but they will also eat lizards. The pit vipers stay in one place and wait for their prey, rather than engaging in a continuous active search for food.
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How can you tell the difference between a coral snake and similar-looking non-venomous snakes?
Coral snakes are venomous snakes with bright color patterns, and several harmless snakes mimic their patterns. In North America, a helpful rhyme to distinguish coral snakes from mimics is: "Red on yellow, kill a fellow; red on black, venom lack". However, this rhyme is unreliable outside the United States.
Coral snakes have red, black, and yellow or white rings. They possess short, hollow fangs that deliver a potent neurotoxic venom. Mimics are non-venomous or mildly venomous snakes with similar coloring. The rhyme refers to the order of the colored bands: if red bands touch yellow bands, the snake is a venomous coral snake; if red touches black, it is likely a harmless mimic like a scarlet king snake.
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coral snake, any of more than 100 species of small, secretive, and brightly patterned venomous snakes of the cobra family (Elapidae). New World coral snakes range in size from 40 to 160 cm (16 to 63 inches) and are classified in two genera (Micruroides and Micrurus); they are found mainly in the tropics. Three additional genera of related snakes live in Asia and Africa. Most species are tricoloured (rarely bicoloured), with various combinations of red, black, and yellow or white rings; width of the rings varies. All have smooth scales and a short tail. Short hollow fangs deliver a potent neurotoxic venom.
Micrurus has the most species of the New World coral snake genera, about 80. They range from the southern United States to Argentina. Only two species, however, live in the United States. The eastern coral snake, or harlequin snake (Micrurus fulvius), which lives in the southeastern U.S., is about 1 metre (3.3 feet) long and has wide red and black rings separated by narrow rings of yellow. The Arizona coral snake (Micruroides euryxanthus) is a small (40–50-cm) inhabitant of the American Southwest.
In most classifications, Old World coral snakes comprise the genera Calliophis (with 10 species) and Sinomicrurus (five species) of southern Asia and the genus Hemibungarus (three species) of the Philippines. Some classifications also include African harlequin snakes (Homoroselaps), which are known for their pronounced orange, black, and yellow coloration. Although some classifications of New World coral snakes also include the genus Leptomicrurus (two species), most place members of this group into the genus Micrurus.
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There are 50 genera of coral snake mimics, such as the false coral snakes (see king snake and scarlet snake), and nearly one-third of all American species have some coral snake pattern. The rhymes “Red on yellow, kill a fellow, red on black, venom lack” and “Red and yellow can kill a fellow; Red and black, friend of Jack” are two of several similar mnemonics that have been used to distinguish coral snakes from similar North American snakes, such as the scarlet king snake (Lampropeltis elapsoides). Herpetologists note that these rhymes are useful in separating true coral snakes from their mimics in the United States, but people should not rely upon them in other parts of the world.
Coral snakes belong to the family Elapidae, which also includes cobras and various other venomous snakes. Most coral snakes prey on other snakes, particularly worm snakes and blind snakes, lizards being a secondary food source. New World coral snakes lay 1 to 13 eggs. The longevity record for Micrurus in captivity is 18 years.
The International Union for Conservation of Nature and Natural Resources (IUCN) considers most coral snakes to be species of least concern. However, it lists the Catamayo coral snake (Micrurus catamayensis) of Ecuador and the Merida coral snake (M. meridensis) of western Venezuela as endangered species and the Roatan coral snake (M. ruatanus) of Roatán island in Honduras and coral snakes from the species M. medemi of central Colombia as critically endangered species.