Save
Email
Print
Share
RSSInbreeding
Mammals, most other animals,
and higher plants as well,
have ways to minimize
inbreeding. An inbred
individual is likely to
possess several physical and
health defects, in addition
to higher incidence of
... > full story
Fertilisation
Fertilisation, also spelt
fertilization (also known as
conception, fecundation and
syngamy), is fusion of
gametes to form a new
organism of the same
species. In animals, the
process involves a sperm
... > full story
Fertility
Fertility is the ability of
people or animals to produce
healthy offspring in
abundance, and of the earth
to bear fruit. Human
fertility depends on factors
of nutrition, sexual
behavior, culture, instinct,
... > full story
Semen
Semen or sperm is a fluid
that contains spermatozoa.
It is secreted by the gonads
(sexual glands) of male or
hermaphroditic animals,
including humans, for
fertilization of female ova.
Semen discharged by an
... > full story
Browse Reference Articles
1 to 10 of 871 articles
-
Fertility
Pregnancy and Childbirth
Mating and Breeding
Stem Cells
Sports Medicine
Attention Deficit Disorder
Spermatozoon
A spermatozoon or spermatozoan (pl. spermatozoa), and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote can grow into a new ... > more -
Canid hybrid
Canid hybrids are the result of interbreeding between two different members of the canine (dog) family (Canidae). The wolf (including the dingo), coyote, jackal, and domestic dog all have 78 ... > more -
Fertility
Pregnancy and Childbirth
Mating and Breeding
Healthy Aging
Attention Deficit Disorder
Sports Medicine
Artificial insemination
Artificial insemination (AI) is when sperm is placed into a female's ovarian follicle (intrafollicular), uterus (intrauterine), cervix (intracervical), or fallopian tubes (intratubal) using ... > more -
Sea-Monkey
Sea-Monkeys are a hybrid of Artemia salina, a species of brine shrimp. These are a type of fairy shrimp -- not true shrimp, but a branchiopod. The term Sea-Monkeys (sometimes unhyphenated) is a ... > more -
Egg (biology)
In most birds and reptiles, an egg is the zygote, resulting from fertilization of the ovum. It nourishes and protects the embryo. Oviparous animals are animals that lay eggs, with little or no other ... > more -
Plant sexuality
Plant sexuality deals with the wide variety of sexual reproduction systems found across the plant kingdom. This article describes morphological aspects of sexual reproduction of plants. That plants ... > more -
Erectile Dysfunction
Healthy Aging
Attention Deficit Disorder
Mating and Breeding
Muscular Dystrophy
Sports Medicine
Sex linkage
Sex linkage is the phenotypic expression of an allele that is dependent on the gender of the individual and is directly tied to the sex chromosomes. In such cases there is a homogametic sex and a ... > more
Search ScienceDaily
Number of stories in archives: 140,690
more 
