At the same time, very high oxidation states are known for oxygen-based species only.

Life histories are known for only few species of Odinia, and no biological information is available for the majority of species in the family.

The mountain is also known for its many carnivorous plant and orchid species, most notably Nepenthes rajah.

It creates a large delta, well known for its beauty and for many animal species, protected by international environmental treaties.

However, the genus is best known for several species that are obligate mutualists with certain species of Acacia.

The family Thraupidae is known for tanagers and other very similar species of birds, but it is still facing classification issues.

Radular tooth (not known for fossil species)

Pomme De Terre is very popular among anglers and the lake is well known for several different species of fish.

The area is also known to butterfly researchers for several very rare species, including the endemite, Elophos zirbitzensis.

The typical life expectancy in the wild remains poorly known for most species, but captive Sumatran surilis have lived for more than 18 years.