Jason Ramsay-Brown talks about botanical chalking: what it is, how it started, and its powerful possibilities increase awareness of nature.
Bruce Thompson discusses the prehistoric origin of ferns, their unique reproduction strategy, and preferred places to grow.
Richard Partington talks about Manitoba Maples: how they contrast in look and use from other maples, and where to find them in Toronto.
Anne Purvis discusses the Gypsy Moth, its life-cycle, and the impact of its defoliation of trees, especially oaks. A non-native, it has no natural predators and various methods of control are described.
Mary-Kate Whibbs describes native freshwater mussels and the role of fish in reproduction, and compares them with non-native Zebra and Quagga mussels.
Bruce Thompson describes Painted Lady Butterflies, where to see them and their impressive migration!
Sophie Breitbart discusses scientific names "binomial nomenclature", the long history of classifying organisms, the impact of the scientist Linnaeus, and origins of names. from Latin, Greek and Indigenous languages.
Jonathan Harris describes the importance and many uses of community gardens, where to find one or how to start one..
John Carley talks about the Toronto Centre Butterfly Count begun in 1995 and its results, how counts are conducted, and how you can get involved.
Ellen Schwartzel describes the native American Elderberry shrub, its cultural and medicinal significance, and its star turn in the 1944 movie "Arsenic and Old Lace".
Bruce Thompson identifies the Northern Cardinal, their relationships, when/where to see them and why they’re a successful species despite many predators.
Nancy Dengler describes how a young American, John Muir, came to 1860s Ontario and documented nature in central and southern areas. After returning to the U.S. in 1867, he eventually became America's most influential naturalist and conservationist.
Paul Overy describes the origin and history of the Laurentian Channel from prehistoric to present time, its accidental discovery in 2003 and need for stewardship.
Richard Partington talks about Cottonwood Trees: what they look like, where they grow, and the use of their aromatic resin.
Ellen Schwartzel describes the difficulty of identifying different warblers, their long migrations, and when and where to see them in the GTA.
Jon Harris describes the Kentucky Coffee-tree and its unique seed pods.and leaves, where it is found, and reproductive challenges.
Bruce Thompson describes the invasive and agressive European Fire Ant, its sting, its large colonies, and its harmful effects on native ant species and ecosystems.
Betty McCulloch talks about the life cycle of the Monarch Butterfly, data collected through butterfly tagging at Rosetta McClain Gardens, and how to assist their survival.
Jason Ramsay-Brown talks about the renaturalization of Terraview and Willowfield Gardens parks from their former status as 401 run-off ponds and the need of improve the downstream Taylor-Massey Creek.
Paula Davies talks about the meaning of stewardship and how to get involved. The story of the Oak Ridges Moraine illustrates the challenges faced by stewards.