Sentences with phrase «sperm than mice»
That's why elephants have smaller sperm than mice.
https://www.sciencedaily.com/ Not exact matches
These modified mice had significantly smaller testes and lower sperm counts than their normal counterparts — and when the group bred them with normal females, they found that the litter size was around half normal.
But the males — despite having smaller testes and lower sperm counts than normal mice — were clearly fertile and produced offspring.
«Why mice have longer sperm than elephants.»
In addition, the sperm heads of this mouse «are huge,» suggesting that they pack much more DNA than typical rodent sperm does, Gallardo notes.
Next came the ultimate test: would sperm from polygamous males be more successful at producing offspring than sperm from monogamous mice?
In previous research, Wu and colleagues found that genes related to sperm production in fruit flies, mice, and rats evolved faster than other genes.
Exposure of rats, mice, and dogs for several weeks showed some damage to the testes and sperm at doses of more than 26 mg boron / kg which corresponds to 15 grams of borax / day for 60 kg body weight.