A weasel must eat a least once every 24 hours to survive and routinely consumes a third of its weight daily. In winter, weasels can happily live under snow.
Tentsmuir, a place of broad horizons and rolling seas, and out on a tidal lagoon a scattering of resting oystercatchers, their long red bills firmly tucked under their wings as they slept.
Another giant of the sea has been found washed up on the Angus shoreline, a day after a massive whale was found at Lunan Bay.
A dead whale has been discovered on an Angus beach.
The low autumn sun over Loch Leven illuminated this small group of goldeneye ducks in perfect fashion; the rays of light catching every nuance of their green iridescent heads.
Noise pollution from cargo ships can stop the singing of male humpback whales, a study has suggested.
The difference could hardly have been starker; on my local river in Strathdevon moorhens are the shyest of birds, lurking close beside the lush bankside margins and disappearing like magic at the first whiff of an approaching person.
The buzzard sitting in the grassy field ducked its head, then ducked again, as a procession of red kites swooped down upon it, one after another as if in concerted attack.
Down by the river there is a fallen beech tree of such massive girth that it must have made a most striking impression upon the landscape before it tumbled to the ground a couple of decades or so ago.
A pioneering new course has been launched in Dundee giving students the chance to work directly with threatened species such as lemurs and bears.