|
Subject |
Comments |
Views |
Author |
Date Written |
Dental hygiene and the rainforest
|
view preview
Chewing sticks are used by many people instead of toothbrushes. The neem tree grows in many Asian, African, and Middle Eastern countries. Indigenous people in these areas know that chewing neem twigs is good for their teeth. The epidermal tissues contain chemicals that kill bacteria and reduce inflammation. The study of how indigenous (native) plants are used by different cultures is known as ethnobotany.
|
|
|
2 |
7303 |
duddy |
10 years ago |
Tree climbing goats
|
view preview
Found in Morocco, they climb these Argan tree in search of food. It's hard to imagine that animals with hooves could be so adept at climbing but these images are 100% real. Food is fairly sparse in this area, so they have to grab it when they can - even if it's high up in a tree! The secret to their ability to climb lies in the shape of their hooves. The keratin reinforced hoof wall adds strength, while the soft textured sole provides traction and grip. It's also capable of deforming inwards to counter irregularities in the terrain. Their toes are capable of operating independently giving them more of a "grip". These hooves evolved to allow the goats to climb rocky, mountainous areas - but they've shifted ecosystems to the trees! ...
|
|
|
0 |
3890 |
duddy |
10 years ago |
Proof that money does grow on trees
|
view preview
Well, okay GOLD. Apparently, gold grows on eucalyptus trees. Researchers discovered that the trees are acting as a hydraulic pump, extracting gold from the soil and moving it to their leaves and branches. The ‘nuggets’ are about one-fifth the diameter of human hair, but the leaves may be used in combination with other tools to develop better exploration techniques.
|
|
|
0 |
7623 |
duddy |
10 years ago |
World's largest seed
|
view preview
The coco-de-mer palm tree ( Lodoicea maldivica) is endemic to the Seychelles. Its seeds are the largest and heaviest of any plant in the world, and have been highly prized over the centuries, which has almost driven the palm tree to extinction.
|
|
|
1 |
5678 |
duddy |
10 years ago |
Colorful trees
|
view preview
These are rainbow eucalyptus trees ( Eucalyptus deglupta) and they hail from the Philippine Islands. The trees get their name from the striking colours observed on their trunks and limbs. Although it may look like someone took a paintbrush to them, these colours are entirely natural. Unlike most trees, the rainbow eucalyptus does not have a thick, cork-like layer of bark on its trunk. The bark is smooth and as it grows it 'exfoliates' layers of spent tissue. This exfoliation technique occurs at different stages and in different zones of the tree. Once a layer is shed, a new fresh green bark is exposed. As this new bark ages, we can see the tissue change colour to dark green followed by a bluish colour, then to purple and pink-orange and then f ...
|
|
|
0 |
4069 |
savio |
10 years ago |
Curvy trees
|
view preview
This is a remote forest in Western Poland, where 400 pine trees have grown with a curvature in their trunk structure and it turns out that no one really knows exactly what caused it. There are, however, a few theories: 1) The main theory seems to suggest that this is the result of human interference. It is believed that this is a tree farm and the trees were forced to grow horizontally in their youth to make a carpenters life easier. The curved shape can be induced by laying a heavy object over a young tree stem. Phototropism will cause the stem beyond the heavy object to grow toward the sky, while the growing stem beneath and behind the heavy object will develop what is called morphogenetic compression wood - which ultimately makes the curv ...
|
|
|
2 |
3283 |
duddy |
11 years ago |
|