Living BeingsCompare species
Thalassiosira pseudonana
Thalassiosira pseudonana
African Savanna Elephant
Loxodonta africana
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 | Thalassiosira pseudonana | African Savanna Elephant |
|---|---|---|
| Physical traits | Cells have the rounded symmetry typical of a centric diatom. Fine wall patterning is best examined with microscopy. | Broad ears, a long trunk and column-like legs give the animal its familiar outline. The trunk tip has two finger-like projections. Both sexes can develop tusks. |
| Habitat and range | Marine aquatic conditions and appropriately supplied cultures support its photosynthetic growth. | Savannas and open woodland provide a shifting mixture of browse, grass, shade and drinking water. Seasonal water availability influences the places that herds use. |
| Diet and nutrition | Light drives carbon fixation. Silicon, nitrogen, iron and other resources are also needed; carbon supply alone does not ensure growth. | Grasses, leaves, bark and other plant material make up its diet. The trunk gathers food and moves it to the mouth. |
| Behavior and activity | Nutrient transport and metabolic regulation connect cells with fluctuating dissolved resources. | Female relatives and their young form long-lasting social groups. Older females hold knowledge of familiar routes and resources; adult males have a different pattern of association. |
| Reproduction and life cycle | Vegetative division produces daughter cells and newly constructed wall material. Silicic-acid transport and wall-formation genes support this process. | Calves are born alive and depend on milk and extended social care. Learning from other elephants is an important part of growing up. |
| Geographic distribution | The reference genome comes from an authenticated strain. Related environmental observations need species-specific confirmation. | Native to sub-Saharan Africa. This account follows the savanna-elephant species concept rather than treating all African elephants as one species. |
| Ecological role | Primary production and silica use connect its growth with aquatic carbon and mineral cycles. | Feeding and movement alter vegetation, and dung transfers seeds and nutrients. Habitat fragmentation and killing for ivory threaten populations. |
| Distinctive adaptations | The genome study identified genes for silicic-acid uptake and construction of a silica-based cell wall. It also found capacities for iron uptake, varied nitrogen use and a complete urea cycle. These findings link the distinctive wall with less visible nutrient-processing machinery important in an aquatic cell. | Data unavailable |
Classification
Shared ancestry
Closest shared taxon: Eukaryota.