Naturally magnetic, biologically precipitated magnetite (Fe3O4) has been found in chitons, magnetotactic bacteria, honey bees, homing pigeons, and dolphins. Its mineralization in localized areas may be associated with the ability of these animals to respond to the direction and intensity of the earth’s magnetic field.

The idea that pigeons’ beaks contain tiny particles of an iron oxide called magnetite is not a new one, says Cordula Mora, who led the latest study at the University of Auckland, New Zealand. But the particles themselves are likely to be only a few micrometres across, and no one has ever seen them under the microscope.

Behavioral evidence indicates that there are magnetoreceptors in the beak of birds. These receptors include magnetite, as indicated by the pulse experiments, and they mediate their input to the brain by the ophthalmic nerve and the trigeminal system.

It turns out that pigeons an a number of other species including bats have metal deposits in their heads. These metal deposits, haematite, they’re iron and they’re magnetically sensitive. They use the Earth’s magnetic field as a kind of compass. They set their compass according to where the sun is at certain times.

Magnetite has turned up in bird beaks and fish noses and even in the human brain, as Joe Kirschvink of the California Institute for Technology in Pasadena reported in 1992, and it is extremely sensitive to magnetic fields. In the early 2000s, scientists found magnetite-bearing cells in the beaks of pigeons.

The entire body of pigeon is covered with a close and continuous covering of feathers, which constitutes the plumage. The feathers are found only in birds and are modified reptilian scales.

# According to Vastushatra it is very auspicious to keep a pigeon or crow’s feather in the house and if you want to keep peace in the house then quietly wrap the feather of the pigeon/crows in a white cloth and with a red thread Tie your vault or keep it in a place holding money.

Giraffes

Fishes are finned aquatic vertebrates. They have scales, an interior skeleton, and breathe by passing water over their gills (aquatic respiration). They have smooth, moist skin with no scales, feathers, or hair.

There is good evidence to show that the primates are the most intelligent order of placental mammals, after all, humans are primates.

Here are a few of the most intelligent animals that will might change your opinion of what being smart means.

• Smartest Animals: Chimpanzees.
• Most intelligent animals: Goats.
• Smartest animals in the world: Elephants.
• Smart animals: Dolphins.
• Smartest animals: Crows.
• Smartest animals in the world: Bees.

The eutherian or ‘placental’ mammals, like humans, make up the vast majority of today’s mammalian diversity.

As in most marsupials, the reproductive systems of the koala are similar in form and function to those of placental mammals (mammals that have a placenta) with more differences in females. Koala reproduction has a short gestation period, followed by a premature birth.

joeys

30 – 36 days