Aaron Huey National Geographic Magazine
Accompanied by their cubs, the Iron Creek West wolf mate in Denali blaze their way through the new snow to a new hunting ground. The pair are wearing radio necklaces that the biologists put on.
Nationalgeographic.co.id—About 20,000 years ago, Earth experienced blow time last. The estimated average cooling temperature of the LGM (the Last Galacial Maximum) it was -6.1 degrees Celsius, according to research in the journal Nature in 2020.
Such conditions caused many living things to become extinct, starting with large herbivores, then followed by large carnivores that depend on them for their survival.
Regardless of being a dog relative, wolf (Canis lupus) is not a tame carnivore. It relies on the large herbivores in the northern hemisphere, which is where the region is blow time greatly impacts the food chain.
Long-canned tigers became extinct after the Ice Age; Paleontologists do not know the exact cause of its extinction.
So, a number of scientists in Canada studied how to survive it in the past through journal reports Palaeogeography, Palaeoclimatology, Palaeoecology (Vol. 571). The research was conducted by analyzing the bones of 48 wolves and 31 other ancient animals that lived 50,000 to 26,000 years ago.
The bones analyzed belong to the Museum of Nature’s Palaeobiology Collection, and the Yukon Government Palaeontology Program Collection in Canada.
“We can study dietary changes by examining the wear patterns on the teeth and chemical traces on the wolves’ bones,” said study lead author Zoe Landry. Science Alert.
The intended wear, as noted in the report, is in its patterns and characteristics.
Spotted teeth usually belong to wolves, which have scavenged the remains of other animals, indicating that they have fractured. Whereas wolves that usually eat fresh meat will leave thinner scratches.
The mammoths were pushed into eastern Siberia at the end of the Ice Age, about 10,000 years ago, and gradually became extinct.
“[Cara] This can tell us a lot about how the animal ate, and what the animal ate during its life, up to about a few weeks before death. “
Based on the analysis of teeth and isotopes, it turns out that wolves on the ice can quickly adjust their diet to the availability of changing prey. With that diet, their behavior can adapt quickly.
The specimens studied were also compared with the bones of 17 modern wolves whose skulls have been preserved by the Canadian Museum of Nature’s Zoology Collection.
In addition to scavenging the leftovers that have been hunted, there are also those who hunt for remaining herbivorous animals in the ice age. Generally they hunted Pleistocene era horses (Equus sp), and the rest are Dall’s sheep (Ovis dalli), russian, mammoth (Mammuthus primigenius), and Muskox (Ovibos moschatus).
Very different from wolf in the Yukon, Canada, which is their current habitat. Wolf modern survival by hunting Russian poles, and Russian large of the genus Alces. According to researchers, this is a significant change in diet.
Another flexible ability, according to the researchers, is revealed in their adaptation and shifting of their habitat from steppe ecosystems to forest areas. This displacement is also related to the survival of the prey species they can eat.
The researchers added in their report that these findings have important implications for conservation wolf now. Despite the diet wolf adaptability, this ability can be lost if their food source is depleted and irreplaceable.
The researchers suggest in their report, that Russian poles and Russian others, as well as ecosystems near the Arctic, must be protected. Because the location is a habitat wolf, are now under a huge threat of climate change which could affect their behavior.