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	Ancient Creature of the Deep Meet the coelacanth, a bizarre fish and "living fossil" that has changed little in its 400 million years on Earth.

	Animal Hospital High-tech health care comes to veterinary medicine—radiology to surgery, intensive care to sports medicine.

	Ape Genius Experts zero in on what separates humans from our closest living relatives.

	Beast of Loch Ness, The Scientists employ state-of-the-art sonar and cameras in an attempt to locate the elusive Loch Ness Monster.

	NOVA scienceNOW: Bird Brains Clues to the origins of human language are turning up in the brains of birds.

	Bone Diggers Deep in an Australian cave, paleontologists discover fossils of extinct giant animals.

	NOVA scienceNOW: Capturing Carbon An eighth-grader's science fair project prompts her scientist father to develop a new way to pull excess carbon dioxide out of the atmosphere.

	Crocodiles! Scientists examine the life of the crocodile, a creature that has changed little since the time of the dinosaurs.

	Curse of T. rex How do paleontologists and commercial fossil hunters know where to look for rare and priceless dinosaur bones?

	Deep Sea Invasion A toxic aquarium plant is accidentally released into the Mediterranean, overwhelming marine life and threatening to spread worldwide.

	Dogs and More Dogs How and why did man's best friend evolve from wolves, and why are dogs so remarkably diverse today?

	NOVA scienceNOW: Emergence How does the "intelligence" of an ant colony or the stock market arise out of the simple actions of its members?

	First Flower In remote mountains of China, experts find clues to the origins of Earth's most stunning plants.

	NOVA scienceNOW: First Primates Our most distant primate ancestors, which took the stage shortly after the dinosaurs left it, were tree-dwellers the size of mice.

	Flying Casanovas The male bowerbird of Australia exhibits extraordinary courting antics.

	NOVA scienceNOW: Frozen Frogs The common wood frog freezes solid every winter and then, come spring, defrosts and mates.

	Four-Winged Dinosaur, The Surprising fossils from northeastern China spur a debate over how birds evolved.

	Garden of Eden The giant tortoise and an ant-sized frog are just two of the dazzling array of life-forms native to the Seychelles Islands.

	Ghost in Your Genes Experts investigate how a mysterious "second genome" helps determine our biological fates.

	Hawaii Born of Fire From their blistering beginnings as molten rock, the Hawiian islands have grown into a verdant paradise of unique lifeforms.

	The Incredible Journey of the Butterflies Follow the 2,000-mile migration of monarchs to a sanctuary in the highlands of Mexico.

	Into the Abyss A daring expedition attempts to retrieve several "black smoker chimneys" from the seafloor a mile and a half down.

	Island of the Sharks Visit Costa Rica's Cocos Island, which boasts more sharks per cubic yard of water than perhaps any other place on the planet.

	Island of the Spirits On the island of Hokkaido in the far north of Japan lives an extraordinary spectrum of life.

	Japan's Secret Garden For at least 2,000 years, the wildlife and people living around Japan's Lake Biwa have lived in a harmonious balance.

	Jewel of the Earth David Attenborough probes the mysteries of ancient life-forms perfectly preserved in amber.

	Judgment Day: Intelligent Design on Trial Science is 'Exhibit A' in a landmark trial on the teaching of evolution.

	Kingdom of the Seahorse The world's leading sea horse biologist journeys to Australia and the Philippines to explore the secret lives of these extraordinary fish.

	Kings of Camouflage Meet the cuttlefish, one of the brainiest, most bizarre animals in the ocean.

	Last Great Ape, The An expedition into the Congo examines one of our closest living relatives, the peace-loving bonobo.

	NOVA scienceNOW: Leeches A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds.

	Leopards of the Night NOVA's state-of-the-art camera equipment reveals the nocturnal hunting behavior of leopards in Zambia's Luangua Valley.

	Lizard Kings Meet the monitors, the largest, fiercest and craftiest lizards on Earth.

	Lord of the Ants Naturalist E.O. Wilson's fascination with little creatures has led him to some very big ideas.

	Master of the Killer Ants The Mofu people of Cameroon rely on an unlikely ally—a driver ant—to protect their homes and crops.

	Megabeasts' Sudden Death Scientists propose a radical new idea of what killed off mammoths and other large animals at the end of the Ice Age.

	Methuselah Tree NOVA examines the fascinating life cycle of the world's oldest living thing, a 4,600-year-old bristlecone pine in California's White Mountains.

	NOVA scienceNOW: Mirror Neurons A recently discovered system in the brain may help explain why we humans can get so worked up watching other people.

	Missing Link, The Paleontologists studying the Devonian Period (408-360 million years ago) discover a tiny fossil of colossal importance.

	Mysterious Life of Caves Toxic caverns teeming with strange life-forms spark a radical theory of how caves take shape.

	Night Creatures of the Kalahari Beneath the grassland plains of the Kalahari lies a hidden world of rare and exotic animals.

	Odyssey of Life Lennart Nilsson's extraordinary microphotography reveals a world we've never seen—within and on ourselves.

	Orchid Hunter NOVA investigates an all-consuming passion for orchids, nature's most highly evolved plant.

	Perfect Pearl, The Once a rare gem produced by an accident of nature, the pearl is now the product of careful human engineering.

	NOVA scienceNOW: Profile: Maydianne Andrade By peering into the sex lives of Australian redback spiders, this evolutionary biologist has shown the upside of cannibalism.

	NOVA scienceNOW: Profile: Bonnie Bassler Her insight into how bacteria "talk" has launched a revolution in biological and medical research.

	NOVA scienceNOW: Profile: Sangeeta Bhatia Intrigued by the idea of artificial organs, a biomedical engineer uses computer-chip technology to craft tiny livers.

	NOVA scienceNOW: The Search for ET Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?

	NOVA scienceNOW: Profile: Edith Widder Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.

	Secret of Photo 51 Meet Rosalind Franklin, the unsung heroine behind the discovery of DNA's double helix.

	Secrets of the Crocodile Caves Rare lemurs and crocodiles with bizarre cave-dwelling behavior draw scientists to a remote corner of Madagascar.

	Shark Attack! Sharks are known as the "perfect predators," but sometimes they slip up and attack the wrong prey—people.

	NOVA scienceNOW: Smart Sea Lions and Talking Walruses Marine mammals are wowing researchers with more than just circus tricks

	NOVA scienceNOW: Stem Cells What are they, and how do we find a balance between hope for cures and respect for life?

	NOVA scienceNOW: Stem Cells Breakthrough Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.

	Ocean Animal Emergency Wildlife veterinarians struggle to save injured seals and sea lions on the California coast.

	Tales from the Hive Our cinematographer films inside a hive and follows bees in flight to capture honeybee behavior.

	NOVA scienceNOW: T. Rex Does an adolescent growth spurt account for T. rex's enormous size?

	NOVA scienceNOW: T. Rex Blood? Preserved soft tissue, including possible blood vessels and red blood cells, are turning up in dinosaur fossils.

	Volcano Above the Clouds Join a scientific expedition to the glacier-capped summit of Kilimanjaro, Africa's tallest mountain.

	Wild Wolves NOVA exposes the secret life of the pack: where its members live, how they hunt, what their calls mean.

	Wilds of Madagascar, The Scientists try to capture and study a catlike predator known as the fossa and an extremely rare lemur called the silky sifaka.

	World in the Balance NOVA investigates forces that are radically changing populations in both rich and poor nations, and explores how to create a world that can sustain the human race.