How do taiga animals regulate their circadian rhythms in response to the extreme variations in daylight hours throughout the year?

Coniferous trees like spruce, hemlock, pine and fir are commonly found in the taiga. Most coniferous trees are evergreen and are specially adapted to survive in ... Lichens, symbiotic organisms consisting from mycobionts (fungi) and photobionts (algae and/or cyanobacteria), play a substantial role in boreal coniferous ... There is a wide range of animals living in the taiga, from large carnivores such as grizzly bears, to the tiniest of herbivores such as Muskrats and ... Plants of the taiga. This biome contains a high number of arboreal species: mainly firs (Abies and Picea), pine trees, birches, and fewer larches, willows, ... There are quite a few endangered species in the Russian taiga, and one of them is the European mink. The European mink, or Mustela lutreola, is a carnivorous ... The taiga still teems with fascinating animals whose tenacity reflects their ancestors' adaptations to this beautifully harsh habitat. ... animals like snowshoe hares, lemmings and beavers. There are about 85 mammal species that live in the boreal forest. Thousands of insect species are part of ... Mammals most common in alpine terrain include the American Pika, Hoary Marmot, Grizzly Bear, and Dall's Sheep. Mountain Goats, which are not really goats at all ... The wide range of habitats in which wolves can thrive reflects their adaptability as a species and includes temperate forests, mountains, tundra, taiga, ... LOCATION: The name for this biome, temperate grasslands, is a great description for what it is like here The most important plants in this biome are grasses!