相关实验视频

Updated: May 24, 2025

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
07:25

Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria

Published on: July 20, 2017

11.5K

在营养限制下Astyanax mexicanus的繁殖适应

Fanning Xia, Ana Santacruz, Di Wu

    bioRxiv : the preprint server for biology
    |March 3, 2025
    PubMed
    概括

    在营养物质稀缺的情况下,洞穴鱼表现出增强的繁殖策略,产生更大,富含黄蛋白的蛋,并在饥饿期间保持繁殖,与表面鱼不同. 这种适应与脂丰富和特定基因调节有关,为在营养有限的环境中生存提供了洞察力.

    更多相关视频

    Reproductive Techniques for Ovarian Monitoring and Control in Amphibians04:37

    Reproductive Techniques for Ovarian Monitoring and Control in Amphibians

    Published on: May 12, 2019

    15.5K
    Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats06:38

    Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats

    Published on: October 13, 2018

    15.3K

    相关概念视频

    Energy Budgets00:51

    Energy Budgets

    Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
    9.1K
    Overview of the Reproductive System01:31

    Overview of the Reproductive System

    The reproductive system generates offspring, ensuring the survival of the species. In humans, the reproductive system is complex and involves a variety of organs and hormones that work together to ensure successful reproduction.
    The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...
    871
    Inclusive Fitness00:57

    Inclusive Fitness

    Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.
    35.9K
    Asexual Reproduction02:38

    Asexual Reproduction

    Asexual reproduction allows plants to reproduce without growing flowers, attracting pollinators, or dispersing seeds. Offspring are genetically identical to the parent and produced without the fusion of male and female gametes.
    29.9K
    Natural Selection and Mating Preferences01:06

    Natural Selection and Mating Preferences

    The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
    Females, due to their biological roles in conception, pregnancy, and nursing,...
    88
    Life Histories01:29

    Life Histories

    Overview
    17.7K