Captive-breeding

Wolves and high-content wolfdogs are never born white. Regardless of subspecies (timber/gray, Arctic, etc.) all will be born black, brown, or dark gray, with no defined facial markings or other visible coat patterns. They gradually phase into their adult coloration as they mature, and may experience further phasing throughout their lives. 

Pictured above are the stages in coloration change for a true high-content wolfdog. The pup starts out a uniform brown, and, over the course of a year or so, it slowly loses the dark pigmentation, giving way to the true hue of its adult coat. 

Beware of breeders selling wolfdogs with high content claims if the pups are born white, or if they display prominent markings. Real wolves and high-content wolfdogs are always born a solid dark color, despite breeders’ claims to the contrary. Several generations of captive breeding will not undo what tens of thousands of years of evolution have wrought. 

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Wild clouded leopards are extremely secretive and elusive, which means we know very little about their mating and parenting habits.  In captivity, females give birth to litters of one to five kittens, though the most common number is three.  Wild clouded leopards hide their kittens in nests made of dense clumps of vegetation hidden in the tree tops.  In contrast, captive clouded leopards are often poor mothers, tending to abandon their kittens or even kill them later, so most are taken away and raised by hand.  

These kittens nurse for three months after birth, and become independent at the age of about ten months.

Meet Ozymandias, our endangered Burmese Mountain Tortoise (Manouria emys)! Reaching weights of upto 100lbs, this unusual critter is the fourth largest tortoise species on Earth!

They are also among the most primitive extant tortoises on the planet based on morphological and molecular studies.

We are proud to be the caretaker of two Burmese Mountain Tortoises and we intend to help in Canada’s captive breeding of this species at risk. Come visit Ozy at the Prehistoria Natural History Centre in Toronto! We are open Friday-Sunday (12-6pm) at 1193 Weston rd (Weston & Eglinton).

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Clouded leopards are extremely elusive, and as such little is known about their social behaviour.  They are believed to be solitary except for mating, but unlike with many big cats, captive breeding has proved problematic.  Pairs brought together as potential mates had a tendency to react with aggression when faced with a strange animal.  Males in particular would become violent, biting through the females’ necks and severing their vertebrae.  Many potential breedings sadly resulted in disaster.

Now, keepers have discovered that the problem may be the meeting between two strangers.  Now, a pair that is hoped to be mated one day is introduced and raised together while they are kittens, so that the two form a bond and are used to each other’s presence.  This has drastically reduced the amount of violence and drastically increased the success of captive breeding.

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Unusually for salamanders, hellbenders engage in external fertilisation.  Male hellbenders will seek out the perfect flat rock under which to dig a nesting burrow, and will defend it viciously from other males.  When a female approaches, the male will coax her inside to lay her eggs, which he will then fertilize.  A single female can lay up to 200 eggs, connected by five cords, and one male’s burrow can contain almost 2000 eggs at once.  The male will guard the eggs in the two or three months it takes them to hatch, standing over them and rocking his body and undulating his skin folds to keep water flowing over his clutch, keeping them oxygenated.  When the larvae hatch, they are all but limbless and subsist on a large yolk sack for their first few months of life.

Sadly, the larvae have little chance of making it to adulthood.  Aside from the adult hellbenders’ tendency towards cannibalism, hellbender larvae are particularly vulnerable to pollution and rising silt levels.  Some zoos, such as the Toledo Zoo, are now raising hellbenders until they are about a year old before releasing them to the wild, greatly increasing their chance of survival. 

A Puerto Rican crested toad [Bufo lemur] owned by the Oakland Zoo in California as part of a captive breeding program intended to restore the toad to their former population numbers. They were once though to be extinct and were only rediscovered in 1984. This particular toad is one of two female toads credited with producing over 3000 tadpoles last year as part of this program. Image property of the Oakland Zoo.

flickr

panda santuary2 by SAFA US
Via Flickr:
Panda Sanctuaries are the largest remaining habitats of the giant panda. The sanctuaries are the species’ most important site for captive breeding.

Side note of the day?

Don’t flipping release your pets into the wild??????
Question marks because I feel like this should be common sense?????


I don’t care if it is “found in the wild”.

I don’t fracking care if you saw a wild version tap dance its happy wild ass across your lawn seconds before releasing your captive breed bun.

Not only is it dangerous for your critter, but it’s dangerous to native critters, and whatever ecosystems are around.

Now I will walk away before I rant some more. & repeat, please don’t release pets.

Decembird2016 Day 6, a flightless bird. The Kakapo is the world’s heaviest parrot. It’s a nocturnal, ground-dwelling parrot that lives in New Zealand, also called the owl parrot. Its endangered and very difficult to breed in captivity as it has a habit of bonding with humans over its proposed potential mates. 2016 has sucked in almost every way but we can be delighted to know that Kakapos have had a record breeding season this year, hatching 47 chicks.

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After mating, the female cassowary will lay three to six large, green eggs.  Once these eggs are laid, the female’s job is done, and she will wander off to find another male to mate with.  It is the father who constructs a nest of waterproof vegetation and incubates the eggs for the next fifty days.  A devoted parent, the male will not leave his eggs until they have hatched.  A broody male cassowary does not need to eat, drink, or even defecate for the entire period of incubation.

Cassowary chicks are small, beige in colour, with dark brown stripes.  The father will protect his new family with devotion, showing them what foods to eat and ferociously protecting them from predators.  The chicks will stay with their father for the next nine months.

It has also been noted in zoos that cassowary chicks will imprint readily on anyone who is present when they hatch, including humans.  These chicks are then extremely tame and will follow their adopted parent anywhere.  In some native villages in New Guinea, cassowary chicks are even kept as pets and left to wander loose through the village, like chickens.  However, even the tamest chick will turn savage and dangerous upon reaching adulthood.  

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Critically endangered Mexican gray wolf female in captivity. Conservation efforts to breed and release these gorgeous animals back into their natural range are on going. A population of about 97 wild wolves have established territory in the Gila and Apache National Forests, in New Mexico and Arizona.

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I jumped aboard the Pokemon Variant Bandwagon and I’m not even sorry. Luxrays for everyone!

Standard: The standard Luxray breed, originating from Sinnoh. Powerful and Loyal, they make great battle partners for trainers. Because of this, and their regal looks, they have become very popular and can be seen through most known regions.

Maneless: By far the most aggressive of all the known breeds, these sharp-eyed felines form Prides in plains and savannahs. They are known man-eaters, and the majority of human attacks link back to them.

Polar: Painfully shy and elusive, this species dwells on ice and snow covered mountains, far from human settlements. Notoriously difficult to breed in captivity, tamed Polar Luxrays are incredibly rare and valuable.

Clouded: Native to tropical climates, wild populations can only be found in the Hoenn Region. Much like their Polar cousins, they are shy and avoid most human interactions, choosing to hide amongst the treetops.

Melanistic: While beautiful, these Luxrays are a result of a genetic mutation. They are sought after by Co-ordinators for their gorgeous pelts and pleasant disposition.

King: King Luxrays are bred for their unsual Mohawk-like Manes and unusual pattern. Far more stubborn than any of their other cousins, Kings are difficult to train and will bond wih only a single trainer.

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Bali Myna (Leucopsar rothschildi) have been the subject of a number of captive breeding programs since the 1990s. While these gorgeous birds are incredibly popular in Bali, even appearing on Bali coins, their numbers are currently estimated to be under 100 individuals in the wild. Because breeding programs are so important to the Bali Myna’s survival, careful records have been kept on their captive breeding habits and behaviors. While the myna’s chief breeding years happen before the age of five, with decreased but still active breeding until about age fifteen, mynas can live a good deal longer than that in captivity. It’s likely that because many mynas won’t make it to those older ages, their reproductive energies are focused into their younger years. This knowledge can help conservationists to decide which individuals are viable parents, and which ones to retire from the breeding pool.

Photo credit: Ash Boudrie

You waited all week for this

  • Pi Day: Twenty two sevenths of irrational exuberance. 
  • Daylight Savings Time. Live long enough to get your hour back, Tumblr. 
  • Pro and amateur league accounting.
  • And the start of SXSW: Brands for cool kids.  

Originally posted by usedpimpa

Drama in TV land

The sound of one string strumming

All politics is national

Originally posted by washingtonpost

And!

  • Seaworld stopped captive Orca breeding.

Now let’s do the Tumblrs:

  • Feminist Frequency (@femfreq): Working for a more equitable media landscape
  • Code.org (@codeorg): Learn to hack the mainframe in just 15 minutes a day.
  • Type Worship (@typeworship): Beautiful lettering, from alpha to omega. 

Originally posted by orcinussorca