Hallucination is defined as perceiving something that seems real but in fact, it is not. Some references take it as a synonym for delusion. Both hallucinations and delusions are perceptions or beliefs that something seems real. However, the individual that experiences hallucination senses a vision, sound, or other perceptions, later on, denies it to be..
Article Category: Zoology
Articles on [b:2r2tixuk]Zoology[/b:2r2tixuk], the branch of biology that is concerned with the animals and animal life, including the study of the structure, physiology, development, development and classification of animals
Regeneration in humans – Finding the gene switch
Regeneration in humans is much more limited compared in other animals. Say for instance when one lost a limb, much as well say goodbye to it for the rest of one’s life. Perhaps, it would be nice if we have a higher capacity to regenerate many of our indispensable body parts, like head, limbs, and..
On Mate Selection Evolution: Are intelligent males more attractive?
A study published in Science on January 11 seems to be the first to lay empirical evidence that concur with Charles Darwin’s hypothesis: … that mate selection might have contributed to the evolution of intelligence or cognitive abilities. Scientists from China and the Netherlands collaborated in a study on budgerigars, Melopsittacus undulatus. Based on what..
Wild dolphins learn to “tail-walk” on the water, yet it’s just a fad
Dolphins performing acrobatic tricks have, time and again, fascinated and mesmerized people. As early as 1860s, capturers took dolphins and other cetaceans (e.g. whales and porpoises) out of their aquatic habitats and held them in captivity in various parts of Europe and North America. At first, they kept them in a dolphinarium mainly as an..
Sex Reversal – When Males Grew Ovaries Instead of Testes
Summary: Sex reversal is not unusual in some animals, especially in invertebrates. As for the vertebrates, there are reptiles and fish that can have their sex reversed under certain circumstances. Sex reversal in these animals is often driven by environmental and social factors. But how about mammals and humans whose gonads are fully differentiated and..
Tracking the migration of Whip-poor-will in Americas
Eastern whip-poor-will (Antrostomus vociferous) is continuously declining due to habitat loss and unavailability of insects for food. Little is known about whip-poor-will migration because of their nocturnal quite habit during non-breeding season. At high latitude 80% avian species are migratory wherein factors affecting migration includes predators, anthropogenic threats and pathogens. Migratory strategies allows individual to..
Thanatosis – Faking Death To Escape Doom
Thanatosis — pretending to be dead — is one of the best strategies that certain wild animals came up with in order to survive. Since the prey is usually inferior to its predator, it must use wit to its advantage. When all else seems futile, thanatosis seems the only way to go. Thanatosis – what..
The Amazing Spider Dads
Humans are not the only fathers capable of giving it all for the sake of their progeny. The animal kingdom is teeming with fathers that are downright heroes. For instance, male redbacks and dark fishing spiders are great spider fathers. They would voluntarily throw themselves into the clutches of their mated female and eaten… never..
Muscles of the Apes – a thwack on human muscle evolution
Summary: A recent finding suggests that apes do have the muscles for bipedalism, vocal communication, and facial expressions that were largely held exclusive to humans. When Planet of the Apes hit the big screen, many of us thought it was a far-fetched display of what could have been if apes were able to act, speak,..
Newly Discovered Exploding Ants – Colobopsis explodens
A new ant species, Colobopsis explodens, was recently identified. Similar to other exploding ant species, Colobopsis explodens is capable of bursting their body to kill or injure its foe in an effort to defend the nest. It will be used as a model species to lay the groundwork for more research on exploding ants. Colobopsis..
Humans are Omnivores – Evidence
Humans are classic examples of omnivores in all relevant anatomical traits…
Physical characteristics of Sharks
Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a streamlined body…
Bee Species Outnumber Mammals And Birds Combined
Scientists have discovered that there are more bee species than previously thought…
Sense Organs in Insects
Vision is the perception of light. Insects perceive light through three classes of sensory organs..
Alloparenting-What Is It?
An introduction to what alloparenting is. No examples, just explanation of benefits to alloparenting to all involved in the activity–parents, young, and alloparents…