The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts
Humans. One has the strength to carry victims from forest fires and earthquakes. Another is too weak to carry a gum wrapper as far as the dustbin.Dog breeds look different because they’ve been selectively bred by humans for aesthetics as well as usefulness, breeding from the occasional mutation that pleases the breeder.
There is also sexual dimorphism – where males and females differ greatly – but that’s not really diversity, just a population reacting to some evolutionary pressure in an odd way. Dogs are diverse because we’ve deliberately mucked about with their genetics. The same could be said for horses . I doubt that any natural situation would induce the same level of difference, but, if it did, most likely the biologists would initially define many species, perhaps until the geneticists had marked their homework.
Australia Latest News, Australia Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Liz Truss reminds me of a Tory leader but it’s not Margaret Thatcher | Andrew RawnsleyShe has personal traits and political characteristics that are strikingly similar to those of Boris Johnson
Read more »
Liz Truss reminds me of a Tory leader but it’s not Margaret Thatcher | Andrew RawnsleyShe has personal traits and political characteristics that are strikingly similar to those of Boris Johnson
Read more »
The 47th parliament is the most diverse ever – but still doesn’t reflect AustraliaWhile women have made the biggest gains, parliament still has a long way to go to truly reflect multicultural Australia
Read more »
Would you try this blue scampi caviar? Fishermen say there's a price benefit to being more adventurous with your seafood choicesCould fish offal be the new frontier in restaurant dining? Australia has over 5000 species of fish so why do we eat so few?
Read more »
Rudy turned to TikTok to explore why they quit playing sportRudy Jean Rigg's TikTok documentary series looks at the unique barriers transgender and gender-diverse people face trying to participate in sport.
Read more »
Policies designed to benefit the well-offReaders discuss homes, including the battle for the less well-off to buy a home and what we need to do to rectify this, and also social housing.
Read more »