Wildlife pond cross section and plan
Cross section of an ideal wildlife pond showing frog, water but, aquatic plants, a log pile and watering can, and floating water soldier being visited by a damselfly
Schematic of trees in a tropical forest
Ink drawing showing different trees, vines, and lianas in a tropical African forest such as in Ghana
Schematic Diagram of Duck Egg
Stylized diagram of the duck egg showing chalaza, yolk, white, germination, membranes, and air pocket
Pigeon skeleton Columba livia
Pigeon Columba livia skeleton simple line drawing
Dipper Cinclus cinclus
Dipper eating aquatic invertebrate
Diagram of a duck skeleton
Stylized diagram of the skeelton of a duck
Diagram of Duck Egg development Day 1
Stylized diagram of the development of a duck egg from being laid until after hatching Day one yolk held in place with chalaza, germinal disc where fertilized chick starts to grow
Diagram of Duck Egg development Day 12
Stylized diagram of the development of a duck egg from being laid until after hatching day twelve feathers start to show eye covered with lid claws formed
Diagram of Duck Egg development Day 27
Stylized diagram of the development of a duck egg from being laid until after hatching Day 27 hatchling squashed inside egg ready to hatch, air cell still shows
Diagram of Duck Egg development Day 5
Stylized diagram of the development of a duck egg from being laid until after hatching day five embryo separates from the yolk, blood vessel network grows and branchesm eye starts to get a colour.
Diagram of Duck Egg development Day 8
Stylized diagram of the development of a duck egg from being laid until after hatching day eight blood vessels carry waste and oxygen, eyelids start to cover eye, beak and egg tooth more clear.
Diagram of Duck Egg development Duckling chick hatching out still half in its shell
Stylized diagram of the development of a duck egg from being laid until after hatching duckling hatching half in half out of shell with prominent egg tooth
Diagram of Duck Egg development Hatched duckling chick
Stylized diagram of the development of a duck egg from being laid until after hatching hatched duckling chick
Diagram of the cross section of a bird bone
Bird bone cross section showing cross bracing for strength and hollow structure
Diagram of the internal anatomy of a duck
Stylized diagram of the internal organs and anatomy of a duck within a pen outline
