Category: Nature

Open Letter to the Honorable Premier of Western Australia, Mr. Colin Barnett

Dear Mr. Premier,

I’m writing to you about the Australian Shark Cull Policy, which targets various shark species, including the endangered great white. This policy was initiated late last year following a spate of fatal attacks in 2011. Despite widespread criticism in Australia, you have refused to back down, claiming your catch-and-kill policy is justified. Continue reading “Open Letter: Aussies Stop Killing The Great White Shark”

It’s 17:53pm as the sun dips behind the Kogelberg mountain range. The windless and warm conditions and the absolute silence magnify the beauty of the Bot River Estuary.

This estuarine system lies on the eastern border of the Kogelberg Biosphere Reserve on the Southern tip of Africa.

It’s amazing to see the changes that have taken place in the last six months, on the the Bot River Estuary.

Everywhere the banks of the estuary are taking on a more beach-like appearance. On clean white sand, sea shells, sea weed, red-bait and cuttlefish are in evidence. The water tastes salty and it’s not unusual to see large shoals of tiny fish being preyed upon by diving sea birds, kestrels and duikers. Continue reading “Dramatic Changes On The Banks Of The Bot River Estuary”

Here on the southern tip of Africa it’s 7:50pm and the sun is sinking on the beautiful Bot River Estuary.

One can just make out the estuary mouth at extreme left on the horizon. The estuary mouth remains closed to the sea for long periods, sometimes years, before it opens naturally to start a new breeding cycle for the many species of fish that populate the estuary.

Image: John L Bradfield

One beautiful sunny morning, a few days ago, while walking the long stretch of beach named Grotto Beach near Voëlklip on the Hermanus coastline, I came across this amazing sight — the after-birth of a Southern Right Whale, washed up on the beach. At least, that’s what I think it was.

The whale that is seen most often in Walker Bay is the Southern Right Whale, so my assumption is that it once belonged to a Southern Right. However, other species do make an appearance occasionally so one can’t be certain.

I didn’t know what this was at first. It looked alien lying there half buried in the sand. I took these photographs and it was only a few days later, after doing some on-line research that it finally dawned on me — it was a whale’s placenta. Continue reading “Southern Right Whale Placenta Washes Up On The Beach”

It seems that Fishing in the Bot River Estuary, one of the largest estuaries in the Cape Province, is not as straight forward as one would think.

This vast expanse of water is the subject of a study carried out by researchers of the Department of Zoology at the University of Cape Town in the mid 1980’s. The estuary teems with over 32 varieties of fish.

Conventional wisdom, and experience, has it that garrik, steenies and large mullet are the most likely catches. These along with leervis, steenbras and elf are popular angling and table fish. Continue reading “Fish and Fishing in the Bot River Estuary”

With the Earth’s population exploding and nearly every arable acre already cultivated, the future of farming is a looming concern. For inspiration science is looking to the leaf-cutter ant which has mastered single crop agriculture and represents the apex of ant agriculture.

Monoculture crops are the rule in modern agriculture. This is why modern crops are especially vulnerable to disease. A pathogen that can infect one plant will likely be infectious to the rest.

Today the banana industry is being threatened by a fungus known as Tropical Race Four. This infection has resisted every counter-measure and may eventually doom modern bananas altogether. Continue reading “Ant Fungus Farmers Hold the Answers for Human Farmers”

Today at sunset I strolled down to the “lagoon” otherwise known as the Bot River Estuary. Lo and behold, the wild horses were grazing on the grassy banks in the distance about 200 meters (650 feet) away.

The Bot River Estuary lies at the edge of the Kogelberg Biosphere Reserve near Hermanus in the Western Cape of South Africa. Fortunately I had my camera with me and I decided to get nearer and take some photos. As I approached them the three stallions in the herd watched me carefully before deciding that I was not a threat. In the fading light I was able to take a few — uploaded here for your enjoyment. Continue reading “Wild Horses at Sunset on the Bot River Estuary”