#ASIATIC RHINOCEROS BEETLE FREE#

Pests on coconut, oil palm or palm plants Royalty-Free Stock Photo Show Image Detail Horn beetle on a rough rocky road background. Asiatic rhinoceros beetle or Bangbung, or Rhinoceros beetle, Oryctes rhinoceros. Royalty-Free Stock Photo Show Image Detail Oryctes rhinoceros know as Asiatic rhinoceros beetle, coconut rhinoceros beetle or coconut palm rhinoceros beetle Royalty-Free Stock Photo Show Image Detail The abdomen of the Horn Beetle on a rough rocky road background. This animal is a species of rhinoceros beetle of the family Scarabaeidae. Royalty-Free Stock Photo Show Image Detail Asiatic rhinoceros beetle (coconut rhinoceros beetle or coconut palm rhinoceros beetle) in the breeding process.

The Asiatic rhinoceros beetle, coconut rhinoceros beetle or coconut palm rhinoceros beetle. Royalty-Free Stock Photo Show Image Detail The Asiatic rhinoceros beetle, coconut rhinoceros beetle or coconut palm rhinoceros beetle Royalty-Free Stock Photo Show Image Detail Asiatic rhinoceros beetle, coconut rhinoceros beetle or coconut palm rhinoceros beetle (Oryctes rhinoceros) on a rattan wall Royalty-Free Stock Photo Show Image Detail Rhinoceros beetle Indonesia. Original article on Image Detail Asiatic rhinoceros beetle (coconut rhinoceros beetle or coconut palm rhinoceros beetle) with natural background. Follow LiveScience on Twitter, Facebook or Google+. 'There's a big benefit to having these horns, but I haven't found any evidence for any cost,' she said.įollow Stephanie Pappas.

#ASIATIC RHINOCEROS BEETLE FREE#

Without much of a cost to the beetle's survival, evolution is essentially free to experiment with weird and wild horn shapes. 'This is not what I was expecting, but it's actually a nice simple explanation for my big interest in why we see so much diversity in these horns,' McCullough said. The researchers report their findings today (March 12) in the journal Proceedings of the Royal Society B. At this angle, even a huge horn adds almost no drag. The beetles fly slowly with their bodies in a near-vertical position, McCullough found.

Cutting off a male's horn moved his center of mass only about 1.7 percent.Īnd in flight, the horns made no difference at all. Because of their low mass, they hardly affected the beetles' center of mass. They comprised only 0.5 percent to 2.5 percent of body weight. The horns turned out to be very dry and hollow, McCullough said. Finally, she tested the beetle bodies in a wind tunnel to see how the horns affected the drag on the beetles' bodies and thus the force they'd need for flight. She also determined the center of mass of the beetles with and without their horns. After euthanizing the beetles, she weighed them with and without their horns. To evaluate the cost of the beetles' horns, McCullough tested Asian rhinoceros beetles ( Trypoxlus dichotomus), which have horns about two-thirds as long as their bodies. Flashy body parts often do in fact, scientists theorize that wild feathers or other elaborate mate-attracting devices send a signal that says, 'Mate with me! I'm so healthy I can support a totally useless appendage!' McCullough and her colleagues expected those weapons came at a cost. Two male rhinoceros beetles lock horns in battle.