This is the first scholarly book on the antelope that dominates the savanna ecosystems of eastern and southern Africa. It presents a synthesis of research conducted over a span of fifty years, mainly on the wildebeest in the Ngorongoro and Serengeti ecosystems, where eighty percent of the world’s wildebeest population lives. Wildebeest and other grazing mammals drive the ecology and evolution of the savanna ecosystem. Richard D. Estes describes this process and also details the wildebeest’s life history, focusing on its social organization and unique reproductive system, which are adapted to the animal’s epic annual migrations. He also examines conservation issues that affect wildebeest, including range-wide population declines.

This is the first scholarly book on the antelope that dominates the savanna ecosystems of eastern and southern Africa. It presents a synthesis of research conducted over a span of fifty years, mainly on the wildebeest in the Ngorongoro and Serengeti ecosystems, where eighty percent of the worldÕs wildebeest population lives. Wildebeest and other grazing mammals drive the ecology and evolution of the savanna ecosystem. Richard D. Estes describes this process and also details the wildebeestÕs life history, focusing on its social organization and unique reproductive system, which are adapted to the animalÕs epic annual migrations. He also examines conservation issues that affect wildebeest, including range-wide population declines.

An illustrated collection of hundreds of riddles in categories such as "Fast & Freaky," "Pet Talk," and "Reverse Riddles."

Gnu and Shrew match wits while trying to reach a cave filled with diamonds in this STEM-filled twist on "The Ant and the Grasshopper." When Gnu says that there's a cave filled with diamonds across the river, Shrew is intrigued. But Gnu seems to be all talk, fantasizing about riches yet dismissing all of Shrew’s suggestions. As Gnu dreams his days away, tossing out one big idea after another, Shrew spends his nights trying to make those dreams a reality. Will Gnu’s big ideas ever be able to mesh with Shrew's hard work to make something remarkable happen? Author Danny Schnitzlein uses deadpan storytelling to put an entertaining spin on "The Ant and the Grasshopper" that values the roles of both dreamers and doers. Anca Sandu's illustrations, rendered in pencil and colored digitally, add to the humor and whimsy. "A refreshing demonstration of different approaches and a friendship that transcends those contrasts." —Booklist Best STEM Books —ASEE / ITEEA / NSTA / SEPA / CBC Also by Danny Schnitzlein: The Monster Who Ate My Peas The Monster Who Did My Math Trick or Treat on Monster Street

A history of our time.

Essay Collection covering the point where software, law and social justice meet.