megamammals
Colossal prehistoric creatures
Megamammals are exceptionally large mammals, typically those weighing over 100 pounds.
The term usually refers to prehistoric giants like mammoths, giant sloths, and saber-toothed cats that roamed during the Pleistocene epoch.
Most megamammals went extinct around 10,000 years ago, likely due to climate change and human hunting.
Living megamammals include elephants, whales, and hippos.
Tusked, trunk-bearing mammals
- mammothsExtinct woolly elephants
- mastodonsExtinct elephant-like mammals
- rhinocerosesLarge horned mammals
- hippopotamusesMassive semiaquatic African mammals
whales · giraffes · gorillas · bison · buffaloes · moose · polar bears · grizzly bears
Ancient glacial geological period
- Ice AgeExtended global freeze
- fossilsPreserved ancient organism traces
- paleontologyStudy of ancient organisms
- tar pitsNatural bitumen pools
La Brea · saber-toothed cats · woolly mammoths · mastodons · Holocene · quaternary · dire wolves · cave bears
Outsized ecological impact organism
- grazingFeeding on pasture
- browsingCasual examination of options
- habitat modificationChanging where species live
- seed dispersalTransport of plant embryos
carrying capacity · herbivory · predator-prey · savanna · grasslands · boreal forests · wetlands · food webs
Present geological era
- PaleogeneEarly Cenozoic era division
- gigantismPathological excessive stature
- thermoregulationMaintaining stable internal heat
- fossil recordRemains documenting prehistoric life
phylogeny · paleobiology · paleoecology · morphology · body mass · metabolic rate · continental drift
elephants
Tusked, trunk-bearing mammals
- mammothsExtinct woolly elephants
- mastodonsExtinct elephant-like mammals
- rhinocerosesLarge horned mammals
hippopotamuses · whales · giraffes · gorillas · bison · buffaloes · moose · polar bears · grizzly bears · tigers
Pleistocene
Ancient glacial geological period
- Ice AgeExtended global freeze
- fossilsPreserved ancient organism traces
- paleontologyStudy of ancient organisms
tar pits · La Brea · saber-toothed cats · woolly mammoths · mastodons · Holocene · quaternary · dire wolves · cave bears · rewilding
keystone species
Outsized ecological impact organism
- grazingFeeding on pasture
- browsingCasual examination of options
- habitat modificationChanging where species live
seed dispersal · carrying capacity · herbivory · predator-prey · savanna · grasslands · boreal forests · wetlands · food webs · biodiversity
Cenozoic
Present geological era
- PaleogeneEarly Cenozoic era division
- gigantismPathological excessive stature
- thermoregulationMaintaining stable internal heat
fossil record · phylogeny · paleobiology · paleoecology · morphology · body mass · metabolic rate · continental drift
megamammalsinsects
Six-legged arthropods
reptiles · invertebrates · arthropods · microorganisms · bacteria
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