All sperm are not the same. Among fruit flies the longer the reproductive tract of the female the longer the sperm. In tiny crustaceans called ostracods, sperm length can range from several hundred micrometers to several millimeters. And here is some trivia for your next cocktail party, sperm in ostracods can even be longer than . . . → Read More: There Is More Than One Way To Impregnate A Squid
|
By Dr. M, on  August 17th, 2011  3 comments  Adaptations, Cephalopods!, Life Science, Mating & Reproduction, New Research, Open Access  competition, egg, oviduct, Reproduction, sex, sperm, squid By Kevin Zelnio, on July 2nd, 2010 2 comments Adaptations, Deep Sea Music, Mating & Reproduction, New Research Best of Zelnio, Botryllus schlosseri, Genetics, Multiple Paternity, Music, polyandry, sea squirt, sperm, Tunicate, Urochordata Photo of Botryllus schlosseri from the Swalla Lab website Yep, that’s right. They get it on with any male gamete that passes their way. They just don’t give a [rhymes with duck]. Boom chaka-laka-boom. These loose lizzies are all about increasing genetic diversity if you know what I mean. OH, I know you know . . . → Read More: Female Urochordates Have Few, If Any, Inhibitions
By Kevin Zelnio, on May 24th, 2010 5 comments Adaptations, Cephalopods!, Fish, Mating & Reproduction, New Research Colossal Squid, Etmopterus spinax, Heliocidaris erythrogramma, Lantern Shark, Predation, Sea Urchin, Selection, sperm, The Tide Pool An occasional series where I briefly report 3 new studies and tell you why they are cool! ———————————- Oxygen consumption rates for various squids as a property of mass. How could not think of the colossal squid as a voracious hunter of the deep?? Contrary to popular opinion Rosa and Seibel argue that “… the . . . → Read More: The Tide Pool: Slow Colossal Squid?, Lantern Shark’s Light Switch, Longer is Faster (in Sperm)
By Dr. M, on November 2nd, 2009 2 comments Cephalopods!, Mating & Reproduction Cephalopod, fitness, Graneledone, hectocotylus, microsattellite, Octopus, Paternity, R Kelley, Reproduction, Same Girl, sperm, Usher Greneledone boreopacifica….Are you my daddy? Image from wikimedia commons Yo Ush, What up Kels Wanna introduce you to this girl, think I really love this girl, Yeah? Man she so fine, Straight up dawg? She stand about 5’4” coke cola red bone, Damn She drives a black Durango license plate say “Angel” tattoo on her . . . → Read More: Same Girl
By Dr. M, on July 13th, 2009 2 comments Adaptations, Biodiversity, Mating & Reproduction, Paleobiology Cretaceous, Crustacea, female, intercourse, male, ostracode, Paleobiology, Reproduction, sex, sperm From Matzke-Karasz et al. 2009. A. Zenker Organ, a specialized organ modified from the vas deferen that serves asa pump for giant sperm. B&C The heavily coiled giant sperm with anteriour (an) and posterior (po) ends shown. Barnacles may have big penises but ostracodes of the superfamily Cypridoidea have giant sperm. Ostracode range are mostly . . . → Read More: 100 Million Year Old Giant Sperm
By Dr. M, on May 21st, 2009 3 comments Biodiversity, Mating & Reproduction egg, fencing, flatworms, Hermaphroditism, little flatworms demanding energy, Penis, Sex Week, sperm To borrow from the great comedic folk duo, Flight of the Chonchords “Yeah, you sexy hermaphrodite lady-man-lady, with your sexy lady bits, and your sexy man bits too, even you must be into you-oo-oo.” Hermaphroditism is common in marine invertebrates and the, flatworms are no exception. Certain species of flatworm engage in a behavior called . . . → Read More: Penis Fencing
By Dr. M, on May 20th, 2009 11 comments Adaptations, Biodiversity, Mating & Reproduction Barnacle, chemical signals, competition, Crustacea, Eric Charnov, evolution, Hermaphrodites, Matt Hoch, Penis, Sex Week, sperm, thesis Two barnacles removed from a rock. The barnacle on top has been fertilized and the eggs are compressed into yellow pellets on either side of the body. The penis is sticking out from in between. The barnacle below has not been fertilized; the un-fertilized eggs are large yellow blobs. The testes are visible in both . . . → Read More: On the study of crustaceous genitalia
By Dr. M, on May 19th, 2009 3 comments Biodiversity, Mating & Reproduction bivalve, cold seep, fertilization, gamet, larvae, mussels, sex, Sex Week, Shawn Arellano, Spawning, sperm Post by Shawn M. Arellano. Dr. Shawn Arellano is a postdoctoral researcher at the Hong Kong University of Science and Technology. Her PhD research at the Oregon Institute of Marine Biology concerned the reproduction and recruitment dynamics of a methane-fueled seep mussel. B. childressi: Photo courtesy of Shawn M. Arellano I have a dirty secret: . . . → Read More: I have a dirty secret: I am a mussel sex voyeur.
By Dr. M, on May 18th, 2009 4 comments Biodiversity, Mating & Reproduction Amanda Kahn, fertilization, gonad, hermaphrodite, Mating, oocyte, Porifera, Reproduction, sex, Sex Week, smoking sponges, sperm, sponge Post by Amanda “not a sponge” Kahn. Amanda Kahn is currently a masters student at well-known Moss Landing Marine Laboratory, considered to be one of the west coast’s premier marine stations. Despite still being in her masters, she is quickly becoming the “go-to” person for deep-sea sponges. Let’s start off “sex week” with the steamy . . . → Read More: “Sleezy” sponge sexuality
By Dr. M, on May 17th, 2009 24 comments Mating & Reproduction Bible, breasts, diversity, evolution, fencing, Israel, Old Testament, Penis, penis fencing, prudish, reproduciton, reproductive isolation, sex, Sex Week, sexual selection, Song of Solomon, sperm This is the official introduction to Sex Week at DSN. We here at DSN never shy away from writing about sex. Through reproduction, fitness is realized as progeny populate the landscape. Thus reproduction can be considered the backbone of evolution as traits are selected for and against, or perhaps not at all. Reproductive methods, the . . . → Read More: Introduction to Sex Week
|
|
|
Copyright © 2012 Deep Sea News - All Rights Reserved |
|
Recent Comments