Extinction event -- An extinction event (also extinction-level event, ELE) occurs when a large number of species die out in a relatively short period of time. Since life began on Earth, a number of major mass ... > full article

Mesozoic -- The Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The Mesozoic includes three geologic periods: from oldest to youngest, they are the Triassic, the Jurassic and the Cretaceous ... > full article

Cretaceous-Tertiary extinction event -- The Cretaceous-Tertiary extinction event was a period of massive extinction of species, about 65.5 million years ago. It corresponds to the end of the Cretaceous Period and the beginning of the ... > full article

Permian-Triassic extinction event -- The Permian-Triassic (P-T or PT) extinction event, sometimes informally called the Great Dying, was an extinction event that occurred approximately 251.0 million years ago (mya), forming the boundary ... > full article

Amphibian -- Amphibians generally spend part of their time on land, but they do not have the adaptations to an entirely terrestrial existence found in most other modern tetrapods (amniotes). There are about 5,950 ... > full article

Decline in amphibian populations -- Dramatic declines in amphibian populations, including population crashes and mass localized extinction, have been noted since the 1980s from locations all over the world, and amphibian declines are ... > full article

Extinction -- In biology and ecology, extinction is the cessation of existence of a species or group of taxa, reducing biodiversity. The moment of extinction is generally considered to be the death of the last ... > full article

Coral bleaching -- Coral bleaching results when the symbiotic zooxanthellae (single-celled algae) are released from the original host coral organism due to stress. The corals that form the structure of the great reef ... > full article

Black-footed Ferret -- TThe Black-footed Ferret is a small carnivorous North American mammal. The Black-footed Ferret is the most endangered mammal in North America, according to the U. S. Fish and Wildlife Service ... > full article

Trophic level -- In ecology, the trophic level is the position that an organism occupies in a food chain - what it eats, and what eats it. Wildlife biologists look at a natural "economy of energy" that ultimately ... > full article

Extinction : How Life on Earth Nearly Ended 250 Million Years Ago
Some 250 million years ago, the earth suffered the greatest biological crisis in its history. Around 95% of all living species died out--a global catastrophe far greater than the dinosaurs' demise 65 ... > read more

The Weather Makers : How Man Is Changing the Climate and What It Means for Life on Earth
Sometime this century the day will arrive when the human influence on the climate will overwhelm all other natural factors. Over the past decade, the world has seen the most powerful El Niņo ... > read more

The Reef Aquarium: A Comprehensive Guide to the Identification and Care of Tropical Marine Invertebrates (Volume 1)
This book is the "bible" on the subject of Reef Aquarium keeping, covering the biology of coral reefs and relating it to the biological, chemical, and physical parameters considered when creating a ... > read more

Marine Fishes: 500+ Essential-To-Know Aquarium Species (The Pocketexpert Guide Series for Aquarists and Underwater Naturalists, 1)
---Comprehensive: 500+ species photographs, covering all popular and commonly available aquarium species ---Authoritative: expert advice on feeding and captive care ---Informative: aquarium ... > read more

Encyclopedia Prehistorica Dinosaurs: The Definitive Pop-Up
From renowned pop-up masters Robert Sabuda and Matthew Reinhart comes an awe-inspiring tribute to the world's most beloved extinct animals and their 180-million-year reign on our planet.Open this ... > read more

Evolution of the Insects
This book chronicles the complete evolutionary history of insects--their living diversity and relationships as well as 400 million years of fossils. Introductory sections cover the living species ... > read more

The Third Chimpanzee : The Evolution and Future of the Human Animal
Jared Diamond states the theme of his book up-front: "How the human species changed, within a short time, from just another species of big mammal to a world conqueror; and how we acquired the ... > read more

Animals in Translation : Using the Mysteries of Autism to Decode Animal Behavior
I don't know if people will ever be able to talk to animals the way Doctor Doolittle could, or whether animals will be able to talk back. Maybe science will have something to say about that. But I do ... > read more

The Reef Aquarium: A Comprehensive Guide to the Identification and Care of Tropical Marine Invertebrates (Vol 2)
This second volume in the series features the anemones and soft corals associated with reefs, detailing their biology and husbandry requirements, and featuring numerous species descriptions, with the ... > read more

The Complete World of Human Evolution
A compelling, authoritative, and superbly illustrated account of the rise and eventual domination of our species.Human domination of the earth is now so complete that it is easy to forget how ... > read more