Animals too can be meristematic

Animals too can be meristematic

Animals too can be meristematic Meristematic tissues are best-known in plants and currently defined as restricted to plants. Similar tissues occur, however, in many animals, the clearest example being the roots of ever-growing teeth such as the incisors of rodents,...
Rock hyraxes know no way to gnaw

Rock hyraxes know no way to gnaw

Heterohyrax brucei photo                                  Rock hyraxes know no way to gnaw Kerodon rupestris photo in the Public Domain The yellow-spotted rock hyrax of Africa is in many ways convergent with the rock cavy of South America, but the two have extremely...
Rock-wallaby is no marsupial klipspringer

Rock-wallaby is no marsupial klipspringer

Petrogale xanthopus photo © Peripitus                                   Rock-wallaby is no marsupial klipspringer Oreotragus oreotragus photo © Neil Strickland The yellow-footed rock-wallaby and the Cape klipspringer are herbivores of similar body mass in habitats...
The improbable complexity of equid dentition

The improbable complexity of equid dentition

Equus caballus photo in the Public Domain                                  The improbable complexity of equid dentition Equus caballus skull photo © PD-self The teeth of the domestic horse are well-documented but poorly interpreted biologically. Instead of simply...
Capybara: more than a giant guinea-pig

Capybara: more than a giant guinea-pig

Hydrochoerus hydrochaeris photo © Dario Sanchez                                  Capybara: more than a giant guinea-pig The capybara is extreme in being the largest living rodent, but is even more extreme in its efficiency of food-processing. What is not generally...
Molar mill of a massive myrmecophage

Molar mill of a massive myrmecophage

Orycteropus afer © OpenCage                                  Molar mill of a massive myrmecophage The capybara of South America and the aardvark of Africa – both of which weigh about as  much as the average woman – are the largest living animals...