Connect-the-dots, puzzles, quizzes, and more. Play these games and test your knowledge!
Explore the evidence, mystery photos, OLogist interviews, and more. Read all about it!
Experiments, coloring books, model-making, and more. Get your hands dirty with these activities!
Animations, ask-a-scientist, sing-alongs, and more. Watch the story unfold!
People and cultures in the past and today
People and artifacts from ancient time
The Universe and everything in it
The rich variety of life on Earth
The organ inside our skulls
Long-term changes in global temperature
The dynamic planet that we call home
How genes are passed down generations
Life in the ocean
Bacteria, viruses, and other microorganisms
Dinosaurs and other things that lived long ago
Matter and its motion through space and time
The liquid that makes life on Earth possible
All animals from insects to mammals
Eudromia elegans
Crinoids
Brachiopods
ruffed lemur
Sumatran tiger
northern spotted owl
humpback whale
St. Vincent parrot
pacu
yacare caiman
American crocodile
Asian elephant
Tibetan antelope
Dolly
Bengal tiger
California condor
electric eel
Goliath frog
hellbender
kagu
king cobra
Komodo dragon
leatherback sea turtle
mountain gorilla
radiated tortoise
starfish
aye-aye
whooping crane
ants
blue ringed octopus
dragonflies
gorgonian fan coral
ladybird beetle
mites
mosquitoes
Portuguese
man-of-war
pseudoscorpions
termites
white-tailed spider
giant tubeworms
cichlids
giant squid
zooplankton
West Indian manatee
giant sea spider
striped bass
orange roughy
brown pelican
snowy egret
triton trumpet
sea otter
blue whale
common dolphin
California sea lion
coelacanth
pygmy loris
polar bear
horse
American black bear
greater short-nosed
fruit bat
white-handed gibbon
Thomson's gazelle
red kangaroo
Broad-tailed Swallowtail
Juvia Large Crow
Magellan's Iridescent Birdwing
Purple Crows
Taiwan Beech Hairstreak
common eastern firefly
golden poison frog
Gaboon viper
cone snail
tardigrade
staghorn coral
axolotl
Cyphonia clavata
smalltooth sawfish
Chirostenotes pergracilis
Diatryma gigantea
Tyrannosaurus rex
Alxasaurus elesitaiensis
Pelecanimimus polyodon
Apatosaurus excelsus
Gondwanatitan faustoi
Huayangosaurus taibaii
Gastonia burgei
Triceratops horridus
Achelousaurus horneri
Protoceratops andrewsi
Drinker nisti
Eoraptor lunensis
Presbyornis pervetus
Stegosaurus stenops
Velociraptor mongoliensis
Oviraptor philoceratops
Psittacosaurus mongoliensis
Trilobites
Coelophysis
Confuciusornis
Effigia okeeffeae
pterosaurs
Redondasaurus
Seismosaurus
Tarbosaurus
Mamenchisaurus
hochuanensis
Dimorphodon macronyx
Jeholopterus ningchengensis
Pteranodon longiceps
Pterodaustro guinazui
Quetzalcoatlus northropi
Tupuxuara leonardii
Patagotitan mayorum
Cladistics
Extinction
genetics
DNA
gene
endangered
cell
chromosomes
bases
breed
nucleus
Human Genome Project
genome
Nature nurture
genetic modification
clone
biodiversity
cyanobacteria
dinoflagellates
giant kelp
giant puffball mushroom
invasive species
penicillin
camouflage
invertebrate
vertebrate
phytoplankton
sea snow
locomotion
feeding
respiration and breathing
communication
domestication
brain
neuron
nervous system
brain plasticity
senses
emotions
thinking
endemic
bioluminescence
human microbiome
influenza
sedimentary rocks
hydrothermal vents
sandstone
deformed conglomerate
granite
igneous rocks
limestone
metamorphic rocks
obsidian
earthquakes
volcanoes
hot spots
Ring of Fire
plate tectonics
mid-ocean ridge
Pangaea
jade
gold
sea ice
water
weather
climate
climate change
fossil fuels
carbon dioxide
solar power
wind power
water power
nuclear power
geothermal power
carbon capture & storage
mercury
hurricanes
tornadoes
Mike Novacek
Mark Norell
Amy Davidson
Roy Chapman Andrews
Sir Isaac Newton
Edwin Hubble
Mike Shara
Neil deGrasse Tyson
George Barrowclough
Yael Wyner
Joel Cracraft
Rob DeSalle
Howard Rosenbaum
George Amato
Gregor Mendel
Chris Raxworthy
Eleanor Sterling
Paula Mikkelsen
Vladimir Ovtsharenko
Albert Einstein
Marie Curie
Johannes Kepler
Galileo Galilei
Sir Arthur Eddington
Melanie Stiassny
Ian Harrison
Adriana Aquino
Chuck Spencer
Christina Elson
David Hurst Thomas
Craig Morris
Marshall Saville
Ro Kinzler
Jim Webster
Ed Mathez
George Harlow
Sterling Nesbitt
Julie Feinstein
Steve Quinn
Martha M. Hurley
Laurel Kendall
John Flynn
Felicity Arengo
Ross MacPhee
Rebecca Oppenheimer
Mordecai-Mark Mac Low
Robert Falcon Scott
Henry "Birdie" Bowers
Apsley Cherry-Garrard
Roald Amundsen
Olav Bjaaland
Oscar Wisting
Susan Perkins
Theodore Roosevelt
Ana Luz Porzecanski
Mongolia
Ukhaa Tolgod
Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
The Big Dipper
Crab Nebula
Polaris
Orion
Solar System
Milky Way Galaxy
Universe
Earth's Moon
Dzanga-Sangha
rain forest
habitat
Madagascar
coral reefs
estuaries
continental shelf
deep sea
mangroves
seafloor
polar seas
Huánuco Pampa
Petra
Mexico
Jordan
Siq
Peru
St. Catherines Island
Conservation Lab
Guatemala
Ghost Ranch, New Mexico
arctic
Antarctica
Taiwan
Europa
Cuba
Hubble Space Telescope
telescope
Sojourner
Viking
Pathfinder
field journal
reduce, reuse, recycle
laser
the Alvin
survey
trowel
microscope
magnetometer
liquid mirror telescope
Curiosity rover
Mount Wilson
Observatory
Planck satellite