A new species of mammal may have been found in Africa's montane forests

December 22, 2020

A research team from the University of Helsinki has discovered a tree hyrax in the Taita Hills, Kenya, which may belong to a species previously unknown to science.

The discovery, which was part of a study of the vocalisations of nocturnal animals in the Taita Hills, was published in mid-December in the scientific journal Discovery.

Very little is known about the diversity and ecology of tree hyraxes because these animals, which look like large guinea pigs but are distant relatives of elephants, are mainly active at night in the tree canopies in Africa's tropical forests. These animals are known to be able to scream with the strength of more than one hundred decibels, but the 'strangled thwack' calls that have been recorded in Taita's forests have not been described anywhere else.

The re­cord­ings re­veal that the Taita tree hyraxes sing

The tree hyrax song may continue for more than twelve minutes, and it consists of different syllables that are combined and repeated in various ways.

"The singing animals are probably males attempting to attract females that are willing to mate," postulates Hanna Rosti, who spent three months in Taita's forests, following the nocturnal mammals and recording their vocalisations.

The results suggest that the two populations of dwarf galago in the Taita Hills may belong to different species. The calls of the animals of the smaller population are very similar to those of the Kenya coast dwarf galago, a species that has previously been thought to live only in coastal, low elevation forests. The peculiar calls of the second population cannot yet be linked with certainty to any known species.

"The taxonomy of many nocturnal mammals remains poorly known, and many populations have not been studied at all yet," says researcher Henry Pihlström, who reviewed the complex taxonomy of tree hyraxes and galagos for the published study.
-end-


University of Helsinki

Related Species Articles from Brightsurf:

A new species of spider
During a research stay in the highlands of Colombia conducted as part of her doctorate, Charlotte Hopfe, PhD student at the University of Bayreuth, has discovered and zoologically described a new species of spider.

Two new species of parasite discovered in crabs -- discovery will help prevent infection of other marine species
Two new species of parasite, previously unknown to science, have been discovered in crabs in Swansea Bay, Wales, during a study on disease in the Celtic and Irish Seas.

Marine species are outpacing terrestrial species in the race against global warming
Global warming is causing species to search for more temperate environments in which to migrate to, but it is marine species -- according to the latest results of a Franco-American study mainly involving scientists from the CNRS, Ifremer, the Université Toulouse III-Paul Sabatier and the University of Picardy Jules Verne -- that are leading the way by moving up to six times faster towards the poles than their terrestrial congeners.

Directed species loss from species-rich forests strongly decreases productivity
At high species richness, directed loss, but not random loss, of tree species strongly decreases forest productivity.

What is an endangered species?
What makes for an endangered species classification isn't always obvious.

One species, many origins
In a paper published in Nature Ecology and Evolution, a group of researchers argue that our evolutionary past must be understood as the outcome of dynamic changes in connectivity, or gene flow, between early humans scattered across Africa.

Species on the move
A total of 55 animal species in the UK have been displaced from their natural ranges or enabled to arrive for the first time on UK shores because of climate change over the last 10 years (2008-2018) -- as revealed in a new study published today by scientists at international conservation charity ZSL (Zoological Society of London).

Chasing species' 'intactness'
In an effort to better protect the world's last ecologically intact ecosystems, researchers developed a new metric called 'The Last of the Wild in Each Ecoregion' (LWE), which aimed to quantify the most intact parts of each ecoregion.

How do species adapt to their surroundings?
Several fish species can change sex as needed. Other species adapt to their surroundings by living long lives -- or by living shorter lives and having lots of offspring.

Five new frog species from Madagascar
Scientists at Ludwig-Maximilians-Universitaet in Munich and the Bavarian State Collection of Zoology have named five new species of frogs found across the island of Madagascar.

Read More: Species News and Species Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.