Why Praying Mantis Kills Mate

The female springbok mantis, Miomantis caffra, is a difficult one to woo. Sixty percent of sexual encounters between springboks end in the female biting the male's head off. A staggering difference when comparing another species of Chinese praying mantis, Tenodera sinensis, whose mating adventures end in a tasty snack only 28 percent of the time. Rather than accept their fate as other mantis species do, male springbok mantises fight females to avoid becoming a post-sex meal, according to a new study published this week in the journal Biology Letters. Nathan Burke and Greogory Holwell of the University of Auckland in New Zealand observed a total of 52 pairs of springbok mantis researchers for 24 hours to see which pairs fought and which one out of the couple won the battle. Over half of the mantises-26 pairs-had a scrimmage in the first 12 hours, reports Karina Shah for New Scientist. The researchers noted that males always instigated the fights and actually used this tactic to encourage mating. When a male springbok fought against the female and pinned them down, they were more likely to mate and escape, reports Laura Geggel for Live Science. On the other hand, if the female pinned the male first, the poor guy would always be cannibalized. Out of these battles, the females came out on top about one-third of the time, and. Most of the winning males lived to see another day, with cannibalistic incidents reduced by 78 percent, reports Live Science.

Females that lost the fights were severely injured by the males' razor-sharp claws. Nathan Burke says to Live Science. Sexual cannibalism is common among praying mantises, and researchers have attributed this behavior to ensuring the survival of the female and her offspring. In Chinese mantises, females only do eat their mates when food is scarce reports, Michael Marshall, for New Scientist in 2014. For female springbok mantises, eating the male poses no threat to procreation and could give the new mother enough nutrients to also support the offspring she produces asexually. Sexual cannibalism is seen in other species like black widow spiders, scorpions, grasshoppers, and beetles. In nature, the goal of survival is to pass on genes to offspring, so male mantises must survive to make sure they have enough love to go around. Burke tells Live Science. Elizabeth Gamillo is a daily correspondent for the Smithsonian and a science journalist based in Milwaukee, Wisconsin. She has written for Science magazine as their 2018 AAAS Diverse Voices in Science Journalism Intern.

39;s Great-great-grandson) to aid Nobita.

This list describes characters from the anime and manga series Doraemon. Also listed are their original NTV voice actors (1973), followed by their TV Asahi voice actors (1979-2005; 2005-present). Part of the 22nd century characters are listed in The Doraemons. Each main character represents a primary school student archetype. Nobita appears in every episode of the anime, while Doraemon appears in most episodes, sometimes being substituted (for medical checkup or on leave) by his sister, Dorami. Note: In some translations of Doraemon, the names of these characters are different from the original names. 2.9 Nobisuke Nobi Jr. Albert in the Cinar dub of the series, is the title character and co-protagonist of the series. He is a cat-like robot from the future. He was yellow-skinned and had ears originally. However, his ears were accidentally eaten by a robot mouse. It left him heartbroken and caused his skin to turn blue. People often mistake him for a raccoon dog. He is sent back in time by Sewashi (Nobita's Great-great-grandson) to aid Nobita. Doraemon possesses a 4-dimensional pocket from which he can acquire various kinds of futuristic tools, gadgets, and playthings from a future department store.

He also has the tendency to panic during emergencies, characterized by him frantically trying to pull out a very much-needed tool from his pocket, only to produce a huge assortment of household items and unwanted gadgets. Still, Doraemon is very friendly and intelligent, not to mention long-suffering because of Nobita's antics. Since Sewashi sent Doraemon to the past, Doraemon has been living as the unofficial fourth member of Nobita's family and acts like a second son to Nobita's parents, since despite being a robot, he requires basic needs for a person, such as eating, and also sleeps in the closet of Nobita's bedroom. He also fears mice greatly (due to a robot mouse having eaten his ears), even go crazy about it and pull out devastating gadgets, and most of the times, Nobita saves Doraemon in such situations. Although he has no fingers in most media, he can hold things because of the suction cups in his hands. His favorite food is Dorayaki. He has also been shown to date with normal female cat. He is the elder brother of Dorami.

Future husband or boyfriend of Shizuka and great-great-grandfather of Sewashi.

Nobita Nobi (野比, Nobi Nobita, English dub: Sidney in the Cinar dub, Specky in the Speedy dub, and Noby Nobi in the Bang Zoom! dub) is the co-protagonist of the series. He wears glasses, a red or yellow polo shirt with a white collar, and blue or black shorts and white socks and light blue shoes. Although he's not good at sports, he's good at shooting. He is usually accompanied by Doraemon, who functions as his caretaker. Although he's not good at sports, he's good at shooting and has been reflected in the movies many time. He's also good at string figure which sometime considered a girls' game. Son of Tamako and Nobisuke Nobi. Future father of Nobisuke (his son). Future husband or boyfriend of Shizuka and great-great-grandfather of Sewashi. Taurus), nicknamed Shizuka-chan (しずかちゃん) is a smart, kind and pretty girl. She is often represented by the color pink, and is seen wearing a pink shirt and skirt.

39;s gadgets, or by the wind.

The word 'Shizuka (しずか)' means 'Quiet'. She is Nobita's best friend. She does not shun Nobita due to his failing grades, lazy disposition or constant failures. In fact, she often tries to encourage him to do better, though she usually fails to convince him. Shizuka likes to take a bath several times a day; however, a running gag in the series is that she is sometimes interrupted by a sudden appearance of Nobita (sometimes Doraemon, Gian, or Suneo) usually due to misuse of Doraemon's gadgets like the Anywhere Door (Doko Demo Doa in Japanese). Shizuka's skirt is also frequently seen getting flipped, either by Nobita misusing Doraemon's gadgets, or by the wind. Scenes in which her underwear is seen, or she is seen bathing, have been removed from the dubbed versions, especially in India, Europe, the United States and the United Kingdom. Her true passions are sweet potatoes, which she would rather keep to herself out of the knowledge of others, and the violin, in which her playing is just as horrendous as Gian's singing. She is also known for taking piano lessons unwillingly due to her mother's wishes (as she loves violin more), which is sometimes a reason for declining to hang out with friends (but she plays piano better than violin). Shizuka is an animal lover and keeps two pets at home: a dog, who is saved from succumbing to illness by Nobita and Doraemon in one story; and a canary which runs away on multiple occasions and causing Shizuka and Nobita to run around the city chasing her down.

She sometimes fansies some handsome idols on TV. Besides Nobita, Shizuka is also close to her classmate and popular student Dekisugi. Though they consider each other only as friends. Gemini), named Buster in the Cinar dub and Bob in the Speedy dub, usually known by the nickname "Gian" (「ジャイアン」, "Jaian", English: Big G) is a strong and quick-tempered local bully. He also frequently steals other children's stuff (especially Nobita's and Suneo's) under the pretext of "borrowing" them, unless the toy is damaged. He is known for his awful singing voice, though he considers himself a great singer. To prove this, Gian sometimes "invites" others to attend his concerts, under the threat of beatings. His singing is so horrible that, once, Nobita and Doraemon try to mute it in a silent world, his writings of the song lyrics in a board end up having the same effect as when they hear them.Though his voice is terrible in one of the episodes it was shown that a girl liked his singing. In some films, his singing is enhanced to become an effective weapon (as in 'Nobita's Great Adventure in the South Seas'). In some episodes when his voice is recorded and he hears it, he instantly denies it being his voice and threatens to beat up the person who his songs in a very bad way (which is an irony).

Gian is also confident in cooking, but just like his singing, his hand made food can be a nightmare for other people very easily. However, Gian does not hesitate to help his friends when they are in real trouble. Throughout the series, particularly the films, he is often the one who voices the most concern and refuses to look away when there is a problem, an opposite of Suneo's cowardice. While he is described by others as daunting and intimidating, he is very sensitive and prone to crying when something touching happens, and he actually values ​​his friends highly, a feeling which his friends sometimes reciprocate. Gian also has a soft spot for his younger sister, Jaiko, and usually tries to prevent her from trouble, even if she can perfectly handle her situation. Gian basically is a bullying 'tsundere'. His catchphrase is "What's mine is mine. What's yours is also mine." (「俺の物は、俺の物。お前の物も俺の物。」, "Ore no mono wa, ore no mono. Omae no mono mo ore no mono."), also known as Gianism (ジャイアニズム, Jaianizumu ) in Japan (the Japanese band Nightmare have borrowed the term for their albums Gianism Best Ofs and Gianizm). Pisces) is the fox-faced (inherited from his mother) rich child who loves to flaunt his material wealth before everyone, especially Nobita. A lot of the stories start with Suneo showing off some new video game, toy or pet which evokes Nobita's envy.

He is often seen with Gian, teasing Nobita. He also often pushes Nobita aside with silly excuses while he invites Gian and Shizuka to his parties or resorts. However, he is actually one of Nobita's closest friends, who would often ask for his and Doraemon's help. In the films, Suneo is often the one most reluctant to take part in Nobita and Doraemon's adventures, and he also tries to face as little trouble as possible and go home, unless others convince him, making him somewhat a coward. He has an extensive knowledge of science, and is a talented artist and designer, besides being extremely cunning. In some scenes, Suneo is seen as a narcissist who loves to stare at himself in the mirror while telling himself that he is the most handsome guy in the world. His habit of bragging often lands him into trouble. Suneo is also very self-conscious about his height, being the shortest kid in his class. He likes steak and melon. There are many reasons why Suneo chooses Shizuka and Gian, except Nobita. It is because he tries to win Shizuka's favour and not to get harmed by Gian. Dorami (ドラミ) (born on 2 December 2114, Sagittarius) is Doraemon's younger sister. Like Doraemon before he developed a fear of mice, she is yellow-skinned, and to keep Doraemon from thinking about his ears, her ears were replaced by a large red bow, her the fox tail were replaced by a flower tail.


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