Living BeingsCompare species
Methanocaldococcus jannaschii
Methanocaldococcus jannaschii
African Golden Cat
Caracal auratus
How to compare two organisms
Choose two species and trace their closest shared group. Then compare a trait with the same definition on each side. Check the units, life stage and context before interpreting a measurement or range.
Missing data means that the collection lacks a sourced value. Where a characteristic does not apply to a lineage, the comparison labels it separately. Open the two profiles for context and follow their sources before drawing a conclusion.
Evidence from the profiles
Compare their characteristics
| Trait | Methanocaldococcus jannaschii | African Golden Cat |
|---|---|---|
| Physical traits | Cells are microscopic and roughly spherical. The accompanying light micrograph shows cultured cells; their simple outline conceals specialized cellular chemistry. | The body is robust and the coat varies between reddish and grayish forms. Spotting can be more visible on some parts of the body. |
| Habitat and range | Hot, oxygen-poor conditions associated with seafloor hydrothermal systems provide the setting of the original isolate. | Dense African forest and secondary growth provide cover and hunting habitat. |
| Diet and nutrition | Hydrogen supplies reducing power and carbon dioxide supplies carbon in its methane-producing metabolism. This is a chemical-energy strategy rather than photosynthesis. | Rodents and other forest mammals are important prey. Birds and additional small animals may also be taken. |
| Behavior and activity | Growth and metabolism are adapted to high-temperature culture conditions. Laboratory experiments examine how metals and sulfide influence survival. | It is generally solitary and difficult to observe in dense cover. Sparse observations should not be treated as a complete account of its daily behavior. |
| Geographic distribution | The original description concerns a hydrothermal-vent isolate. It should not be treated as a complete survey of the species’ global range. | The Mammal Diversity Database v2.5 records this species in Angola, Cameroon, Central African Republic, Cote d'Ivoire, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Ghana, Guinea, Liberia, Nigeria, Republic of the Congo, Sierra Leone, Uganda, Benin?, Burundi?, Gambia?, Guinea-Bissau?, Kenya?, Rwanda?, Senegal?, Sudan?, Togo?. |
| Ecological role | Methanogenesis links this archaeon to carbon cycling in environments without oxygen. | Data unavailable |
| Distinctive adaptations | Experiments show that surrounding sulfide can influence metal toxicity. Survival therefore depends on environmental chemistry as well as temperature. | Data unavailable |
Classification
Shared ancestry
Closest shared taxon: cellular organisms.