This first video shows much of the available footage of thylacines.  Sad...

This one is about efforts to clone a thylacine.
 

Paleontologists in Argentina say they have unearthed the fossils of the biggest dinosaur .The bones are believed to be from a new species of the aptly named titanosaur, a massive herbivore from the late Cretaceous period, officials from the Museo Paleontologico Egidio Feruglio told BBC News.The titanosaur was a sauropod, like the apatosaurus or brachiosaurus, that roamed the forests of Patagonia 95 million years ago."Given the size of these bones, which surpass any of the previously known giant animals, the new dinosaur is the largest animal known that walked on Earth," the researchers told BBC News.Based on the size of the largest thigh bones, the scientists calculated that the titanosaur weighed around 170,000 pounds and measured 130 feet long and 65 feet tall."It's like two trucks with a trailer each, one in front of the other, and the weight of ," said Jose Luis Carballido, a dinosaur specialist at the museum, CNN reported.The Two-Way wondered what else on Earth compares to that gargantuan size. Imagine a : Not even three-quarters of the beast's length would fit, with the remaining 40 feet hanging out in the seats behind the basket.According to the museum's estimates, the creature weighed some 5,000 pounds more than a , and would have stretched a half-foot longer than the airplane.The jumbo titanosaur would have been about at Giza, something like the height of a seven-story building.The blue whale has the new sauropod beat, however. Though the ocean mammal is shorter by about 30 feet, the largest blue whales are estimated to weigh as much as . To be fair, the blue whale never has to support its bulk on land.The site of the discovery in Argentina holds the remains of seven dinosaurs, about 150 bones total. The site was in 2011 in the desert near La Flecha, near Trelew, Patagonia, said The Telegraph.The size of the previous holder of the title of world's largest dinosaur, the Argentinosaurus, was calculated from just a few bones, as opposed to the treasure trove just revealed, the BBC explains."Originally thought to weigh in at 100 tonnes, [Argentinosaurus] was later revised down to about 70 tonnes — just under the 77 tonnes that this new sauropod is thought to have weighed," the BBC reports.The new titanosaur still needs a name, one befitting its monumental dimensions."It will be named describing its magnificence and in honor to both the region and the farm owners who alerted us about the discovery," the researchers told the BBC
http://www.npr.org/blogs/thetwo-way/2014...-argentina

Post all Animals (except Bigcats) related News articles and Information.

Post pictures, videos, accounts and news articles on Lion Predation.

Credit to Apollo for the idea, I hope it is okay that I made a topic on lion predation. http://www.dailystar.co.uk/news/latest-n...on-his-OWN"This astonishing video shows the King of the Jungle giving chase to the juvenile elephant, pouncing onto its back and sinking its teeth into the poor animal's neck.And as he brings it down, the lion is joined by others as they subdue and kill the heavy elephant before feasting on it for dinner.The spirited young elephant at first seems to charge at the lions to scare them off, but then has a quick rethink and makes a hasty retreat."
[img]http://images.dailystar-uk.co.uk/dynamic/1/photos/501000/620x/52de595adfb43_BM_LION_01685706.jpg" class="lozad max-img-size" alt="" title="">






"Unfortunately, his lumbering run was no match for the lion's lethal speed and it was only a matter of time before it became a meal.Shocked tourists reacted with gasps as they saw the dinnertime drama unfold quickly before them.The footage was shot at the Hwange National Park in Zimbabwe, where elephants and lions live alongside zebra, cheetahs and anetelope."



"The two Kwandwe male lion also killed a 4/5 year old elephant calf in the south of the game reserve earlier in the month. As far as I’m aware of this is the first elephant calf this age being killed by lions. What a sighting it was."



"A lone male lion jumped on the back of a mature male giraffe, devoured the tendons and was dragged on for over 500 meters before finally succeeding in bringing it down. This was an act that surprised us all and we were left speechless at how a lone lion could perform this amazing feat!"




Video in link
http://www.dailymail.co.uk/news/article-...d-air.html

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Animal trainers could be something of the past in a few years only. I propose to dedicate this thread to them. Anything goes, as long as it's based on facts.

Post information about captive big cats and other animals used in the circus in this thread. I propose to dedicate this one to observations on animal behaviour. I'll start another thread on trainers.
 

 

http://thechive.com/2014/05/15/bear-brea...ing-video/

There is only one species of lion called  Panthera Leo. The Asiatic lion is just one of many subspecies, all of which have been geographically isolated from one another for thousands of years. Though they all possess slightly different physical and even behavioral traits, they are still capable of interbreeding and producing viable offspring. The following is a list of all the known lion subspecies, both living and extinct.

1. Asiatic Lion (P.l. persica) (Gir Forest Sanctuary in Northwest India)
2. Angola Lion (P.l. bleyenberghi) (Zimbabwe, Angola and Zaire)
3. Senegalese Lion (P.l. senegalensis) (Western Africa)
4. Barbary or Atlas Lion (P.l. leo) (North Africa; extinct in 1920 but may exist in captivity)
5. Cape Lion (P.l. melanochaitus) (South Africa's Cape Province; extinct in 1850 but may exist in captivity)
6. Masai Lion (P.l. massaicus) (Eastern Africa, notably Kenya and Tanzania)
7. Transvaal or South African Lion (P.l. kruegri) (Botswana, Nambia and South Africa)

Asiatic and African lions separated as recently as 100,000 years ago, and are thus very close in genetic make-up. In fact, the differences between the two are less than those found between different human racial groups. However, the differences are significant enough that one can tell the difference between an Asiatic and an African lion if they know what to look for.

SIZE
Asiatic lions are smaller than their African lions. Adult males typically weigh between 350 and 420 pounds, while adult females weigh between 240 and 365 pounds. The largest Asiatic lion on record measured 9½ feet from the tip of its nose to the tip of its tail.
African lions are larger than Asiatic lions. Adult males average between 330 and 500 pounds in weight, with most weighing around 410 pounds. The largest African lion on record weighed over 800 pounds. Females typically weigh the same as their Asiatic cousins. The longest African lion measured almost 11 feet from nose to tail tip.

MANE
Compared to the African lion, the male Asiatic lion has a relatively short, sparse mane. As a result, the male Asiatic lion's ears tend to remain visible at all times. In addition to being less well-developed, the mane is generally darker than that of African lions.
Male African lions tend to have longer and fuller manes than their Asiatic cousins. A lion's mane is a signal of male condition. It allows other lions to assess the male's overall strength and fitness. A male with a long, dark mane is more intimidating to his rivals and more attractive to the opposite sex.

TUFTS
Asiatic lions have thicker elbow tufts and a longer tail tuft than African lions. The tail tuft covers a short spine, the function of which is unknown.
African lions have relatively sparse elbow tufts and a shorter tail tuft than Asiatic lions.

SKIN FOLD
Other than the male's sparse mane, the most distinguishing characteristic of the Asiatic lion is a longitudinal fold of skin that runs along the belly. This trait is found in all Asiatic lions.
Almost all African lions lack the longitudinal fold of skin that runs along the belly of Asiatic lions.

SKULL
If you're ever tasked with finding out whether a lion is Asiatic or African based on its skull alone, here's a tip. Around 50 percent of Asiatic lions have what are called bifurcated infraorbital foramina. These are small holes in the skull that allow nerves and blood vessels to pass to the eye. If a lion's skull has two of these, it's an Asiatic lion.
For whatever reason, African lions only have one infraorbital foramen. Their eyesight is just as strong as the Asiatic lion's, so there's no particular benefit to having two infraorbital foramina versus just one.

PRIDE SIZE
Lions are highly sociable and live in social units called prides.  Asiatic prides tend to be smaller than their African counterparts. The largest recorded Asiatic pride included five adult females, but most just have two adult females. This may be because the animals they prey on are relatively small, or because their range in the Gir Forest is so confined. (It should be noted that further field studies may show that what were thought to be small prides are actually just small foraging groups from larger prides).
In Africa, these prides include an average of four to six females, their cubs and one to four male lions. The faster, more agile females do the hunting while the larger male lions patrol and defend the pride's territory. The females in a pride usually give birth at the same time and raise their cubs together in a crèche, or nursery.

MALE SOCIABILITY
Male Asiatic lions do not live in prides. In fact, they tend to only associate with female lions when mating or at large kills. Otherwise, they live alone or in partnership with another male lion. These partnerships allow male Asiatic lions to control larger territories and more easily scare off rival males.
In Africa, every lion pride has a resident male or group of males, which defend their prides vigorously against other males. Pride takeovers occur every two years, during which the suckling cubs of the defeated males are killed. This ensures that the new male will pass along his genes.

PREY SIZE
The prey animals in the Gir Forest are generally smaller than those in Africa, so hunting groups tend to be smaller as well. This likely explains why pride size is so small. The most commonly taken prey species in the Gir Forest is the chital deer, which weighs only around 110 pounds. These account for around 45 percent of known kills.
The prey animals of the African savanna tend to be larger than those in the Gir Forest of Northwest India. African lions will frequently tackle prey weighing as much as 600 to 800 pounds, such as wildebeest and zebra, and will occasionally take down African buffalo, which weigh between 1,000 and 2,000 pounds. This requires cooperative hunting techniques, which may explain why African lions live in larger prides.

Credit to Animal Planet Website

 

and see what happens.

 

This video raises two questions to me.  I will address them both.

Question 1:  Why is this video not considered dog fighting which would be flagged as animal abuse on youtube?
While there is obvious aggression in the video, as the title suggests it is about canine dominance.  This is certainly a worthy topic of study.  Just as there is much nudity on youtube, there is no pornography.

Question 2:  What is the rationale for posting it in a wildlife forum?
The most basic instinctual behavior of the subspecies canis lupus familiaris is no doubt identical to their wild cousins the gray wolf.