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Latest Northern Short-tailed Shrew Stories

2009-10-29 15:56:36

A harmless digestive enzyme evolved twice into a dangerous toxin in 2 unrelated species Biologists have shown that independent but similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species -- a shrew and a lizard -- giving each a venomous bite. The work, described this week in the journal Current Biology by researchers at Harvard University, suggests that protein adaptation may be a highly predictable process, one that could eventually help discover...


Latest Northern Short-tailed Shrew Reference Libraries

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2007-01-10 12:43:39

The northern short-tailed shrew (Blarina brevicauda) is a large shrew found in central and eastern North America. It is found from southern Saskatchewan to Atlantic Canada and south to Nebraska and Georgia. At one time, this species and the southern short-tailed shrew were considered to be a single species. It is slate grey in color with a light belly. Its body is about 3.94 in (10 cm) long including a .79 in (2 cm) long tail. It weighs about .74 oz (21 g), about the same as a house...

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Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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