According to " The Ancestors Tale " by Richard Dawkins; these two grasshoppers ( " C . brunneus " & " C . bigguttulus " ) are morphologically indistinguishable but will not mate due to difference in their calls.
12.
As there was already a plant named " Banksia brownii " ( Feather-leaved Banksia ), Mast and Thiele were forced to choose a new specific epithet; their choice, " brunnea ", is from the Latin " brunneus " ( " brown " ).
13.
Described in 1878 by George N . Lawrence as " Turdus brunneus ", a name that was already in use ( by Brewer, 1852 and used for " Turdus rufescens " ) the species was therefore renamed as " Turdus lawrencii " by Elliot Coues in 1880.
14.
The well-defined nuptial flight of the hosts is normally observed in November and December so that newly fertilized parasite " A . ameliae " queens ( produced in April ) can colonize established colonies of " A . s . subterraneus " and " A . s . brunneus " well before they reproduce themselves.
15.
The mountain provides a home for a number of endangered and threatened bird species including the Swiersta's Francolin ( " Pternistis swierstrai " ), Angola Cave Chat ( " Xenocopsychus ansorgei " ), Angola Slaty Flycatcher ( " Dioptrornis brunneus " ) and Ludwig's Double-collared Sunbird ( " Cinnyris ludovicensis " ).
