click images to expand them
reload pages to display different images
Animals
mammals
marine mammals
amphibians
Animals on planet earth
On planet Earth there are nearly two million species of animals, most of which are invertebrates which means that they do not have a backbone. Many species are cold blooded and they use the heat from the Sun to keep warm.
Carnivores eat other animals, birds and insects. Herbivores eat only plant leaves and grass.
Animals range in size from elephants and blue whales down to mice and insects, some of which are very small!
Rhinoceros unicornis Indian Rhinoceros and young User: Jo_Oh GNU Free Documentation License 1.2 |
Erethizon dorsatum North American Porcupine User: Needsmoreritalin Creative Commons Attribution 3.0 Unported |
Manis javanica Pangolin User: Hauptsite GNU Free Documentation License |
 Bichon Frise Author: Heike Andres Creative Commons Attribution ShareAlike 3.0 Germany |
Mammals
mammals are warm-blooded creatures with certain characteristics. Human beings are classified as mammals.
Zalophus wollebaeki Galapagos Sea Lion User: Kelly J. Kanel GNU Free Documentation License 1.2 |
Orcinus orca Orcas jumping Author: Pittman NOAA image in public domain |
Ursus maritimus Polar bear swimming User: Ansgar_Walk Creative Commons Attribution-ShareAlike 2.5 Generic |
Arctocephalus tropicalis) South African Fur Seal User: Nicolas Servera (otarie_san@yahoo.fr) GNU Free Documentation License 1.2 |
Marine mammals
Some mammals are classified as marine mammals.
 jumping humpback whale User: Zorankovacevic Creative Commons Attribution-ShareAlike 2.5 Generic |
 common dolphin Source: NOAA User:BabyNuke Image in public domain |
Amphibians
On planet Earth there are nearly two million species of animals, most of which are invertebrates which means that they do not have a backbone. Many species are cold blooded and they use the heat from the Sun to keep warm.
Melanophryniscus atroluteus Uruguay Redbelly Toads User: Aglarech United States Fish and Wildlife Service image in public domain |
Ambystoma maculatum spotted salamander User: Camazine Creative Commons Attribution ShareAlike 3.0 |