The bird's tundra nests are large stick dwellings lined with moss and grasses. Ideally, they are situated close to a pond or other water source. Females typically lay about four eggs and incubate ...

More: ・Historically: The New York Times explains that for millennia, the moss, lichens, and other vegetation of the tundra have taken in carbon dioxide and stored it, as all plants do.

One key piece of evidence was a specimen of rock spike moss (Selaginella rupestris), which ... thick hosted an entire tundra ecosystem, with flowers and potentially even small trees, according ...