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[…]cinereus) is even still to be found in Manhattan…so keep looking and learning! Further Reading Axolotl Care and Natural History Original article describing the newly-discovered Axolotl […]
[…]air pump that provides just enough aeration to keep the eggs slightly in motion. Providing Cover Axolotl eggs are typically attached to plants or other structures, as seen in the accompanying photo. Once they begin to hatch, I’ll add additional plants, nearly filling the tank so as to separate the larvae […]
[…]insects and other invertebrates and small fish. Adults are major predators upon small axolotls and axolotl eggs. The larvae are largely carnivorous, but may consume some algae as well. Their main predators are herons and other wading birds, fishes and larger axolotls. Reproduction Males deposit spermatophores (sperm-filled capsules) on the […]
[…]subject. Please note: the aquatic larvae of all species of salamanders are termed “axolotls” in some references, i.e. as in “tiger salamander axolotls”. The name as used here refers to young and adult Ambystoma mexicanum only. Classification Class: Amphibia Order: Caudata Family: Ambystomatidae A complex of a dozen or more […]
[…]eggs are a great concern among many captive amphibians, although I have not run into such with axolotls. The Eggs Please see the Natural History of Axolotls for details on courtship and mating. Females have been observed to pick up several spermatophores during the night, although it is not clear all are […]
[…]http://www.mexico-herps.com/caudata/ambystoma/ambystoma-andersoni. For information on the Mexican axolotl, please see my article The Natural History and Care of the Mexican Axolotl http://blogs.thatpetplace.com/thatreptileblog/2008/12/19/the-natural-history-and-captive-care-of-the-mexican-axolotl-ambystoma-mexicanum-natural-history-part-1/. Photos courtesy of Michael […]
[…]bulb is best used for illumination, as it will not add significantly to water temperature. Axolotls do not need a source of UVB light. Axolotls are native to cool, high-altitude lakes, and do best at water temperatures of 62-70 F, with a dip to 50-52 F in winter, if possible. […]
[…]the “normal” rules…at least not as I learned them! Recently, bio-engineered axolotls that glow fluorescent green have appeared in the trade. Rearing axolotls in the lab differs in some respects from home care, but much of value is contained in the protocols of institutions maintaining large research colonies. You can […]
[…]scar healing, and the regeneration of human tissue. Further Reading Mexican Axolotl Natural History and Captive Care Endangered Axolotls Found in Mexico City […]
[…]the weight (and date) on the cover. The cover should not be ventilated – for most reptile eggs, a once- daily check provides enough oxygen exchange (ventilation may need to be increased for large numbers of eggs once hatching time nears – please write in if unsure). Keeping Track of […]
[…]years after its “near-death experience”. Other interesting experiences have involved Mexican Axolotls. An individual in my collection became bloated and was unable to submerge. A veterinarian who worked with me at the Bronx Zoo prescribed Itraconizole and other medications, but the infection proved resistant to all. I refrigerated the animal […]
[…]below if you need a reference to a local veterinarian experienced in turtle care. Hatching the Eggs While the eggs of Common Snapping Turtles and other consummate survivors will often do well at room temperatures (in a hot room, in summer), a reptile egg incubator will greatly simplify the hatching […]
[…]Choke Hazards I came upon the idea of using the Cone Worm Feeder many years ago when raising axolotl and red-spotted newt larvae. I fed them largely upon live blackworms, which always clump together, even when finely chopped. I found that larvae of both species sometimes choked to death while […]
[…]is a small sample of the newts and salamanders that are discussed at length: Eastern Newt Mexican Axolotl Olm Tiger, Spotted and Marbled Salamanders Hellbender Lesser and Dwarf Siren Red-Backed Salamander Mudpuppy Fire Salamander One, Two and Three Toed Amphiumas California Newt Fire Bellied Newt Dusky Salamander Spanish Ribbed Newt […]
[…]to show such reproductive flexibility. When breeding near shaded ponds, hourglass frogs lay their eggs on tree leaves overhanging the water (the tadpoles drop into the water upon hatching), thus avoiding fish and other aquatic predators. However, when utilizing ponds exposed to the sun, the majority of the frogs lay […]
[…]breeding habits of this most prolific turtle. Video of a Snapping Turtle digging a nest and laying eggs. Snapping turtle laying eggs image referenced from wikipedia and originally posted by […]
[…]is continually added to the retained eggs, draining the female’s supplies and rendering the eggs ever-more difficult to pass. Eventually, the eggs will break and/or decay, and an infection known as egg yolk peritonitis will set in. If untreated, the female will die. Determining if your Turtle is Gravid Another […]
[…]is acquiring eggs to feed them. Most egg-eaters are too small to take regularly available chicken eggs. Depending on the size of your snake you may feed eggs from pigeons, Coturnix quail, doves, Button quail, or finch. Generally speaking, Coturnix quail eggs (the quail egg eaten as a delicacy) are […]
[…]in late summer or early fall. Clutch size varies from 3-21, with 9 eggs being the average. Eggs and Hatchlings Eggs incubated in moist vermiculite (use a vermiculite: water ratio of 1:1 by weight – please see article below for details) at 82 F will hatch in 45-75 days. The […]
[…]hatchlings in large exhibits without having been aware that a nest was present. Incubating the Eggs The eggs should be removed to a reptile egg incubator set at 82-85 F. At these temperatures, the eggs will hatch in 60-70 days. The hatchlings average just over 5 inches in length, and […]
[…]Reading Salamander larvae Still Being Used as Fish Bait in the USA New Population of Endangered Axolotls Found…in Mexico City! Twelve Rare US Amphibians in Need of […]
[…]eggs. This puzzled me until it was discovered me (not by me!) that the flies lay their own eggs on the shells of reptile eggs – the hatchling maggots are so tiny that they actually enter the egg via the air pores in the shell! It’s not known whether they […]
[…]on the Venezuelan llanos. In many different animals, sperm can remain alive and able to fertilize eggs for years to come. Queen termites mate once and somehow produce fertilized eggs for up to 20 years after! Further information concerning research with this species at Wollongong University is available […]
[…]site, but its better to induce them to lay in a specific place, so that you can easily remove the eggs for incubation (it’s difficult to successfully incubate eggs in an outdoor nest). Constructing an Outdoor Nest Site Gravid females will be drawn to dark, moist, protected nesting sites that […]
[…]be the oddest urban herp experience – Hunting Alligators in NYC’s Sewers. Urban Amphibians: Axolotls Found in Mexico City Park Snakes of NY: Photos and Information Snakes in Indian Cities Milksnake image referenced from wikipedia and originally posted by […]
[…]captiulum’s collar is a favored food of ants of the genus Leptomyrmex. The ants carry the eggs into their nest, where the collar is eaten. The stick insect’s eggs are then discarded in the ant colony’s underground rubbish pile, where, protected from predators and the fires that regularly ravage the […]
[…]that most amphibians, especially largely-aquatic species such as African Clawed Frogs and Mexican Axolotls, absorb water and dissolved chemicals over a much greater surface area than do fishes (scale-less fishes, such as eels, loaches and most catfishes, are similar to amphibians in this regard). In fact, when we administer fish […]
[…]– Oxytosin and Surgery If your turtle appears to be gravid but cannot seem to deposit her eggs, prompt veterinary attention is necessary. As mentioned in Part 1 of this article, retained eggs invariably lead to infection and, eventually, the female’s death. Oxytosin, a medication used to induce labor in human […]
[…]oophagus (egg-eating) poison frog tadpoles, the chicken frog larvae do not wait until the eggs are actually deposited, but rather swarm about the female’s cloaca, eating ravenously as the eggs emerge. It’s quite a scene! A Taxing Time for Mom Subsequent research has revealed that the harried mother uses her […]
[…]beetles, spiders, grasshoppers, caterpillars, mice, shrews, voles, ground nesting birds and their eggs, small snakes, lizards and their eggs, and carrion. Averaging 2-3 feet in length, exceptionally large specimens can top 4 feet. Glass lizards, as their name implies, quickly autotomize (shed) their tails when handled or captured by a […]
[…]spring and summer. Despite being persistently arboreal, females descend to the ground and bury the eggs in moist earth or below leaf litter. Mature eggs can be seen through the abdominal skin of the females. The eggs hatch in 3-6 months, depending upon temperature, and the young reach adult size […]
[…]the male provides most or all of the parental care (please see photo of male Midwife Toad carrying eggs). Such eggs are generally deposited on land, and direct development (from egg to small frog) is typical. Chiromantis hansenae, by contrast, produces many tiny eggs and deposits them above-ground, and tadpoles […]
[…]eggs sent danger signals, apparently via vibration, to the youngsters within. (Red-Eyed Treefrog eggs are attached to leaves overhanging a pond. When under attack, tadpoles burst from their eggs, fall into the water, and swim off). It is not known whether other of the Delicate Skink’s 10 relatives, collectively known […]
[…]Frog and certain other tadpoles develop within a moisture-retaining nest. The Brown Leaping Frog eggs were at least 10 feet from water, and not in a position to be carried there by rain. Also, this was the first time any frog has been observed attaching eggs to tree bark. A […]
Spring in the northeastern USA is prime time for amphibian watchers. Its arrival is most noticeably announced by frogs – first by spring peepers, Pseudacris crucifer and wood frogs, Rana (Lithobates) sylvaticus, with a succession of others following close behind. However, the season’s earliest greeters are silent. I have observed […]
[…]captive breeding seemed to have occurred in the 1950’s. Courtship and Fertilization of the Eggs One female was in breeding condition, as evidenced by the circular, swollen ring about her cloaca and the dark brood patch on her back. Several males were giving forth their metallic, clicking breeding calls, so […]
[…]to induce egg laying. Odder still, however, was the fact that a male placed in the tank with the eggs (and without the female) on the following day fertilized the eggs. He was in breeding condition, as evidenced by the rough “nuptial pads” along his forearms, and perhaps was responding […]
[…]gray foxes, night herons, alligators and other animals prey upon iguanas, only raccoons take eggs, hatchlings and sub-adults in significant numbers. Iguanas…Here to Stay? Young iguanas are now especially common at the site, pointing towards an even greater population increase in the future. Hand-collection, although possible, is a daunting task, […]
[…]hog nose snakes take young ground nesting birds, mice, shrews, toads, lizards, snakes and reptile eggs. In one study, they were found to be a major predator on Pacific pond turtle nests. Those I’ve kept have done very well on small mice and quail eggs. Other Interesting Facts This snake’s […]
[…]A Rusty Wandering Spider (Cupiennius getazi) was photographed while consuming Red-Eyed Treefrog eggs, which had been deposited on a leaf overhanging a small pond. Interestingly, the spider appeared to defend its food source. The eggs did not spontaneously hatch when disturbed by the spider, as they do when attacked by […]
[…]of water. The substrate should be placed within a small Tupperware or similar container and the eggs half-buried into the substrate. Weigh the container, with substrate and eggs inside, and note this figure on the container’s lid. Re-weigh once each week – any drop in weight is the result of […]
[…]of Sydney biologists have revealed that large skink eggs develop into females, while small eggs become males. Furthermore, removing yolk from a large egg resulted in a male hatchling, despite the fact that female genes were present; adding yolk to a small egg over-rode the effect of the male genes […]
[…]species have been shown to actively raise the temperature of their clutch by coiling about the eggs and “shivering”. In captive situations, I have observed incubating female blood pythons (Python curtus) and Burmese pythons (P. molurus bivittatus) to raise their eggs by 7F above the ambient air temperature. Field research […]
[…]to manipulate the hatchlings’ sexes. Please post below for further information. When removing eggs from a terrarium, be sure to make a small pencil mark at the top of each, so that they are not accidentally rotated. Oils from the skin can clog air pores, so use powder free gloves […]
[…]dose and a soak time of approximately 1 hour – gradually increasing both if necessary. For eggs, I dilute the Methylene Blue in water and then use an eye dropper to place it on the eggs (approximately 1 drop per 2 inch square of egg mass). Treated amphibians will be […]
[…]efforts and very willing to consume their progeny. Amazingly, a female in my collection deposited eggs without entering amplexus, and a male fertilized the eggs the following day…please see the article below for details. Observing Breeding Behavior Despite their generally bold demeanor, paired African Clawed Frogs are extremely sensitive to […]
[…]gills, never see the light of day, do not mature until age 16, and reproduce by both laying eggs and bearing live young. Despite their very unique natural environments, Olms do quite well in zoos, often living into their 70’s. Due to the Olm’s rarity, researchers have maintained a breeding […]
[…]reports indicate that Giant Horned Lizards mate in April-June, with gravid females laying 10-30 eggs after a gestation period of 60-70 days. The eggs hatch in 10-12 weeks when incubated at 85 F. Horned Lizard Care Horned Lizards are hard to resist, but it is a mistake to attempt keeping […]
[…]Additional clutches of 1-2 eggs are laid throughout the breeding season, to a total of 8-10 eggs per female. The eggs hatch in 30-45 […]
[…]forearms). Male Smokey Jungle Frogs use their powerful rear legs to whip the jelly surrounding the eggs into a frothy mass of sperm, jelly, skin secretions, air and water. This nest surrounds the eggs and is deposited in a natural (or possibly self-dug) depression in the ground, usually at the […]
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