Historical clue formulations

• Animal life — 2024-06-19
• Beasts — 2023-05-20
• Animal life — 2023-04-16
• Animal life — 2022-04-03
• Animals of a region — 2021-05-26
• Animals, collectively — 2020-01-16
• The birds and the bees, e.g. — 2019-06-16
• Animals, collectively — 2016-02-16
• Beasts of the wild — 2015-12-26
• Part of the biosphere — 2015-11-01
• Animals — 2008-01-02
• Safari spottings — 2007-11-25
• Animal life — 2003-12-30
• Zoologist's study — 2003-01-01
• Animals collectively — 2002-02-04
• Deer, beavers and such — 2001-10-28
• It's a part of life — 1999-08-06
• Zoologists' study — 1999-01-09
• "Sleeping Beauty" fairy — 1998-05-15
• Creatures — 1995-02-01