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Skull. The root word for "stoat" is likely either the Dutch word stout ("bold") [4] or the Gothic word 𐍃𐍄𐌰𐌿𐍄𐌰𐌽 (stautan, "to push"). [5] According to John Guillim, in his Display of Heraldrie, the word "ermine" is likely derived from Armenia, the nation where it was thought the species originated, [4] though other authors have linked it to the Norman French from the ...
Stoat killing a rabbit The fisher , tayra, and martens are partially arboreal, while badgers are fossorial . A number of mustelids have aquatic lifestyles, ranging from semiaquatic minks and river otters to the fully aquatic sea otter, which is one of the few nonprimate mammals known to use tools while foraging.
The skull is, overall, similar to that of the stoat, but smaller, though the skulls of large male weasels tend to overlap in size with those of small female stoats. [23] There are usually four pairs of nipples but these are only visible in females. The baculum is short, [24] 16 to 20 mm (0.63 to 0.79 in), with a thick, straight shaft.
Skulls of a long-tailed weasel (top), a stoat (bottom left) and least weasel (bottom right), as illustrated in Merriam's Synopsis of the Weasels of North America. The long-tailed weasel is the product of a process begun 5–7 million years ago, when northern forests were replaced by open grassland, thus prompting an explosive evolution of small, burrowing rodents.
The ocean represents the largest continuous planetary ecosystem, hosting an enormous variety of organisms, which include microscopic biota such as unicellular eukaryotes (protists). Despite their small size, protists play key roles in marine biogeochemical cycles and harbour tremendous evolutionary diversity.
Mating occurs in July and August but the fertilized egg does not enter the uterus for about 7 months. The young are usually born in late March or early April after a month-long gestation period that happens after the implantation of the fertilized egg, in litters of one to five. [4] Young European pine martens weigh around 30 g (1.1 oz) at birth.
Water is the medium of the oceans, the medium which carries all the substances and elements involved in the marine biogeochemical cycles. Water as found in nature almost always includes dissolved substances, so water has been described as the "universal solvent" for its ability to dissolve so many substances.
The first illustration of the South Island takahē from Gideon and Walter Mantell's notice of the discovery in 1850. Anatomist Richard Owen was sent fossil bird bones found in 1847 in South Taranaki on the North Island by collector Walter Mantell, and in 1848 he coined the genus Notornis ("southern bird") for them, naming the new species Notornis mantelli. [6]