Susan notes: Thanks to TED for making TED Talks downloadable and embeddable, and for providing the biographical information that goes along with them.

Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.

Tierney Thys studies the Mola mola, the world's largest bony fish. With their enormous, odd bodies, peaceful habits and lust for jellyfish, these giants can be key to understanding life in the open ocean. Thys and her team are tagging and tracking molas worldwide to learn about how they live, and how climate change may be affecting all ocean life.

Susan notes: Thanks to TED for making TED Talks downloadable and embeddable, and for providing the biographical information that goes along with them.

At the 2008 EG Conference, artist Miru Kim talks about her work. Kim explores industrial ruins underneath New York and then photographs herself in them, nude -- to bring these massive, dangerous, hidden spaces into sharp focus.

Susan notes: Thanks to TED for making TED Talks downloadable and embeddable, and for providing the biographical information that goes along with them.

Speaking at the 2007 EG conference, "renegade lunch lady" Ann Cooper talks about the coming revolution in the way kids eat at school -- local, sustainable, seasonal and even educational food.

Ann Cooper has a frontline view of the daily battle to keep kids healthy -- and of the enemy, the processed-foods industries that, it sometimes seems, want to wrap every single thing that children eat in a fried coating and then a plastic bag. As the director of nutrition services for the Berkeley (California) Unified School District, she's an outspoken activist for serving fresh, sustainable food to kids. Her lively website, LunchLessons.org, rounds up recipes, links, and resources for food activism.

Susan notes: Thanks to TED for making TED Talks downloadable and embeddable, and for providing the biographical information that goes along with them.

In this hilariously lively performance, actress Sarah Jones channels an opinionated elderly Jewish woman, a fast-talking Dominican college student and more, giving TED2009 just a sample of her spectacular character range.

"Chameleon-like" barely describes the astonishing ease in which Sarah Jones slips in out out of the characters in her solo performances -- as many as fourteen personae in her off-Broadway hit Bridge & Tunnel. Critics marvel not only at her ability to perfectly mimic accents and mannerisms, but also to seemingly reshape her body down to pupils and dimples in the blink of an eye.

Susan notes: Thanks to TED for making TED Talks downloadable and embeddable, and for providing the biographical information that goes along with them.

A unique ecosystem of plants, birds and monkeys thrives in the treetops of the rainforest. Nalini Nadkarni explores these canopy worlds -- and shares her findings with the world below, through dance, art and bold partnerships.

Nalini Nadkarni has spent two decades climbing the trees of Costa Rica, Papua New Guinea, the Amazon and the Pacific Northwest, explorin the world of animals and plants that live in the canopy and never come down; and how this upper layer of the forest interacts with the world on the ground. A pioneering researcher in this area, Nadkarni created the Big Canopy Database to help researchers store and understand the rich trove of data she and others are uncovering.