ScienceDaily: Strange Science News |
- Bats adjust their 'field-of-view': Use of biosonar is more advanced than thought
- Primary component in curry spice kicks off cancer-killing mechanisms in human saliva
- Facial expressions develop before birth, researchers show
| Bats adjust their 'field-of-view': Use of biosonar is more advanced than thought Posted: 13 Sep 2011 02:26 PM PDT A new study reveals that the way bats use biosonar to "see" their surroundings is significantly more advanced than first thought. The study examines Egyptian fruit bats, whose high-frequency clicks form a sonar beam that spreads across a fan-shaped area; the returning echoes allowing them to locate objects in that region. As these bats were considered to have little control over their vocalizations, scientists had puzzled over how they're able to navigate through complex environments. |
| Primary component in curry spice kicks off cancer-killing mechanisms in human saliva Posted: 13 Sep 2011 06:24 AM PDT Curcumin, the main component in the spice turmeric used in curry, suppresses a cell signaling pathway that drives the growth of head and neck cancer, according to a pilot study using human saliva. |
| Facial expressions develop before birth, researchers show Posted: 13 Sep 2011 06:09 AM PDT Babies in the womb develop a range of facial movements in such a way that it is possible to identify facial expressions such as laughter and crying. For the first time, a group of researchers was able to show that recognizable facial expressions develop before birth and that, as the pregnancy progresses from 24 to 36 weeks gestation, fetal facial movements become more complex. |
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