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  First layer
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  Second layer
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  Third layer
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  Fourth layer
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  Fifth layer
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  Sixth layer

Alismatales

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  Spirodela polyrrhiza (larger) compared with Landoltia punctata (smaller)
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  Pygmy chain sword plant

Asparagales

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  Checkered rattlesnake plantain
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  Silky patersonia
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  Giant blue iris
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  Cape tulip
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  Common goldstar
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  Italian bluebell
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  Pineapple flower

Asterids

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  Lu Shan snow camellia
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  Buckthorn bully
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  Velvetleaf huckleberry
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  Southern mountain cranberry
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  Woodvamp
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  Cancer tree
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  Mountain holly
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  Golden-flowered onosma
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  German-madwort

Awards

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  Your-Opinion-is-More- Important-Than-You-Think Barnstar rendered by User:SimpsonsFan08
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  Original Your-Opinion-is-More- Important-Than-You-Think Barnstar by me

B

Bacteria

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  Weissella confusa
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  Methanosarcina barkeri fusaro
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  Korarchaeota

Bikonts

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  Ceramium gracillium var. byssoideum
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  Tetraselmis suecica
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  Snow algae

Biomes

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  1. Sabre-toothed "tiger" Pogonodon
  2. Oreodont Eporeodon
  3. Three-toed "horse" Miohippus
  4. Tortoise Stylemys
  5. Mouse-deer Hypertragulus
  6. "Dog" Mesocyon
  7. Oreodont Promerycochoerus
  8. "Rhinoceros" Diceratherium
  9. Chestnut oak Quercus
  10. Hawthorn Crataegus
  11. Fern Polypodium
  12. Hackberry Celtis
  13. "Maple" Acer

Bony fish

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  Psychedelic frogfish
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  Psychedelic frogfish
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  Psychedelic frogfish
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  Psychedelic frogfish
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  Psychedelic frogfish
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  Psychedelic frogfish
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  Psychedelic frogfish
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  Antarctic daggertooth
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  Antarctic daggertooth
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  Daggertooth
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  Red Sea clownfish
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  Antarctic stareater

Bromeliads

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  Pseudananas sagenarius

C

Caryophyllales

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  Jerusalem oak goosefoot
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  Crispleaf amaranth
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  Tidalmarsh amaranth

Cetartiodactyla

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  Hypertragulus
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  Peary caribou
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  Columbian white-tailed deer
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  Tibetan antelope
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  Blainville's beaked whale
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  Clymene dolphin

Chloridoideae

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  Seashore saltgrass
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  Purpletop
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  Composite dropseed
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  Saltmeadow cordgrass
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  Sand lovegrass
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  Black grama

Collages

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  Individual organisms from various vertebrate classes. Clockwise, starting from top left:
  a) Fire Salamander (Salamandra salamandra), class Amphibia
  b) Saltwater Crocodile (Crocodylus porosus), class Sauropsida
  c) Southern Cassowary (Casuarius casuarius), class Aves
  d) Black-and-rufus Giant Elephant Shrew (Rhynchocyon petersi), class Mammalia
  e) Ocean Sunfish (Mola mola), class Actinopterygii

E

Ehrhartoideae

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  Asian rice

Euarchontoglires

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  White-footed mouse
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  Idaho ground squirrel
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  Washington ground squirrel
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  Mohave ground squirrel
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  San Joaquin antelope squirrel
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  Gambian pouch rat
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  Collared lemming
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  Southern bog lemming
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  Greater bamboo lemur
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  Kipunji
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  Black-tailed marmoset

Euasterids II

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  Southern succisella
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  Sweet scabious
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  Rough-leaved michauxia
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  False Venus's looking glass
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  White rattlesnakeroot
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  Stiff sunflower
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  Bigleaf aster
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  African rosemary
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  Purplestem aster
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  Harperella
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  Dong quai
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  Plains sandparsley
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  Larimer aletes

F

Fair use images

Microsoft Office 97 cover art

Fiction

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  Dragon rearing up to reach medieval knight on ledge
  Katherine Pyle

G

Gondwanan placentals

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  Glyptotherium texanum

I

Insectivores

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  Eastern mole
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  Elliot's short-tailed shrew

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Logos

• Wikipedia Education Program university logos
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M

Maps

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  Languages of the Americas
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  Cellophane sword distribution

O

Objects

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  Emerald ash borer trap

P

Panicoideae

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  Kans grass
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  Plains bristlegrass
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  Java grass
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  Fonio

Pegasoferae

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  Spotted seal
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  Eusmilus
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  Hooded skunk
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  Island spotted skunk
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  Bear-dog
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  Eastern red bat
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  Sac-winged bat
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  Lesser long-nosed bat
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  Geoffroy's tailless bat

Places

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  Hillsdale, Vanderburgh County, Indiana
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  Darmstadt, Indiana
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  Saint Joseph Catholic Church in Saint Joseph, Vanderburgh County, Indiana
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  Skyline of Saint Joseph, Vanderburgh County, Indiana

Pooideae

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  Eastern bottlebrush grass
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  Indian ricegrass
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  Purple reedgrass
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  Winter wild oat

Protostomes

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  A male Steatoda grossa I caught
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  Galerita bicolor that I killed myself
• The safe but time-consuming way to catch spiders
• My preferred method for catching spiders
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  Pine shoot beetle
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  Spider crab in Antarctic waters

R

Reptiles

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  Stegosaurus
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  Stylemys capax
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  Stylemys conspecta

Rosids

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  Golden mountainbanner
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  Spring pea
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  Newberry's milkvetch
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  Meadowfoam
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  Club-pointed heliophila
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  Early yellowrocket

T

Tunicates

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  Didemnum sp. (left) and Botryllus schlosseri (right) overgrowing individuals of the tunicate Styela clava