Thursday 12 June 2014

Magnificent Frigatebird







Out of all the birds in the world, frigatebirds have the largest wingspan in comparison to their body.

Looks:
Frigatebirds are majestic creatures, with gleaming purple-black feathers, a deeply forked tail and a grey hooked beak. Males also have a red throat pouch that they puff up to attract females in the breeding season. Females lack this; instead they have a white patch on their chest, and a turquoise ring around their eye. Juveniles have a white head and belly.

Feeding:
A frigatebird’s diet consists of fish, squid, jellyfish and other marine animals. Lacking the waterproof oil other seabirds have, they are unable to land or take off from the water. Due to this, they are forced to snatch their food from the surface of the sea.They are also nicknamed ‘pirate birds’ due to their tendency to attack other birds and steal their food. 

Breeding:
The female makes a nest out of twigs brought to her by the male. Usually the nest is built in a clump of mangrove, though occasionally she may build it in a tree or on the ground. Afterward she lays a single white egg, which incubates for about 50 days before hatching.
The male departs once the hatchling is half-grown, leaving the female to bring up the chick alone. The male molts and breeds again with a different female, presumably never giving his previous mate a second thought.

Habitat:
These birds live in tropical locations, soaring across the sea to hunt and rarely touching land. When they do, they choose islands such as the Galapagos to breed on or rest.

Lifespan:
Frigatebirds can live for about 15 to 30 years.

Tuesday 3 June 2014

Chameleons

A young Yemen Chameleon



Looks
Chameleons are lizards, best known for their ability to change colour. Many people think they do this to blend into the background—but scientists disagree. Instead they use this amazing ability to either send messages to other chameleons or adjust the temperatures of their bodies. But how do they do this, you ask?
Chameleons actually have four layers of skin, each one including different pigments. They create their colourful combinations by shrinking and expanding cells (called chromatophores), as an artist might mix their paints.
These remarkable reptiles can switch their skin to mixtures of pink, red, orange, green, black, turquoise, purple, and more! Some males even have decorative frills and horns; however, females are often rather bland—their horns are smaller than the males’ and their colours are dulled.
Along with this, chameleons possess feet that allow them to grip easily onto branches, and a tongue that can shoot out to almost twice their body length (not including the tail). And if that’s not enough, their eyes can look in two different directions at once, and focus in on their prey for better aiming.

Habitat
Half of the world’s chameleon population lives in Madagascar. They make their homes in rain forests, grasslands, forested mountains and even deserts!

Feeding
The chameleon’s diet consists of insects such as moths, crickets and caterpillars; larger species, however, may eat smaller lizards and even young birds. They use their muscled, sticky tongues to catch their food.

Breeding
After mating, the female lays her eggs in a hole she digs in the ground. The clutch size will vary between species—smaller chameleons tend to lay about three to five eggs, while larger species can produce up to one hundred!
Depending on the species, the eggs will incubate for about 12 months before the young chameleons hatch. Once free from the eggs, the young chameleons go off to find food and fend for themselves.