Living BeingsCompare species
Scalloped Hammerhead
Sphyrna lewini
African Baobab
Adansonia digitata
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 | Scalloped Hammerhead | African Baobab |
|---|---|---|
| Physical traits | The head is broad and flattened, with a curved, indented front margin. The body has a tall first dorsal fin and a pale underside. | Thick, fibrous bark surrounds a broad trunk. Each compound leaf has several leaflets radiating from a central point. |
| Habitat and range | Coastal shelves, island slopes and offshore waters are used at different ages and times. | A terrestrial tree of tropical Africa, it is adapted to seasonally dry conditions and is also planted in gardens and settlements. |
| Diet and nutrition | Fish and cephalopods are important prey. Feeding changes as sharks move from coastal juvenile habitat to deeper waters. | Leaves produce sugars through photosynthesis. Water and mineral nutrients are taken up through the roots. |
| Behavior and activity | Schooling and movements between daytime gathering sites and feeding areas are characteristic in some populations. | Data unavailable |
| Reproduction and life cycle | Females give birth to live young. Shallow coastal habitats provide nursery areas for juveniles. | Large, hanging white flowers develop into capsules containing seeds embedded in pale, powdery pulp. New trees can be grown from seed. |
| Geographic distribution | The species occurs in warm seas around the world. Its presence is uneven, and local populations can be strongly depleted. | Native to Africa and cultivated elsewhere. The accompanying photograph shows a planted specimen in Madagascar; that location should not be confused with the native range of every baobab species. |
| Ecological role | These sharks are large marine predators and also host parasites and visiting cleaner fish. | Its flowers, fruit and extensive woody structure provide biological resources. The familiar name baobab also applies to other species, which should not be confused with this one. |
| Distinctive adaptations | The expanded head spreads sensory organs across a broad surface, supporting prey detection. | A substantial trunk and drought-resistant growth form help distinguish this tree from many humid-forest trees. |
| Conservation | Targeted fishing, bycatch and loss of nursery habitat are major pressures. Protection needs to consider more than adult aggregation sites. | Data unavailable |
Classification
Shared ancestry
Closest shared taxon: Eukaryota.