Bio_informatics_science_technology_image_beyond_1/2026-01-13_格陵兰鲨是最长寿的脊椎动物.qmd at main · iamhealthy/Bio_informatics_science_technology_image_beyond_1 · GitHub

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---
title: 最长寿鲨
subtitle: 格陵兰鲨是最长寿的脊椎动物
date: 2026-01-13
toc-depth: 4
toc-expand: true
lang: en
---

<center>
![图源：<https://commons.wikimedia.org/wiki/File:Greenland_shark_profile.jpg>](images/Greenland_shark_profile.jpg){width="100%"}
</center>

## 1. 格陵兰鲨的寿命

> The Greenland shark is the <mark>longest-living vertebrate</mark> on Earth, with an estimated lifespan of <mark>up to 400 years</mark>. [@Fogg2026]

> ... the largest animal (502 cm) (i.e. Greenland shark) to be <mark>392 ± 120 years old</mark>. [@Nielsen2016]

## 2. 如何知道格陵兰鲨的寿命？

> <mark>Radiocarbon dating of eye lens nuclei</mark> from 28 female Greenland sharks ...[@Nielsen2016]

## 3. 格陵兰鲨什么时候性成熟？

> the age at <mark>sexual maturity to be at least 156 ± 22 years</mark>, and the largest animal (502 cm) to be 392 ± 120 years old. [@Nielsen2016]

## 4. QuPath groovy script for fun

<center>
![Images created via QuPath.](images/Greenland_shark_profile.png){width="100%"}
</center>

<center>
![Screen recorded via uTools &rarr; 区域录屏。](images/20260113_202844.mp4){width="100%"}
</center>

这是groovy script of QuPath：

```
// QuPath v0.6.0

import qupath.lib.common.GeneralTools
import qupath.lib.objects.PathObjects
import qupath.lib.roi.ROIs

// Remove all existed objects if there are any
selectAllObjects()
removeAllObjects()

// Set image type
setImageType("OTHER")

// Sleep for 30 seconds for opening screen recording
//Thread.sleep(30000)

// ****************************************
// Show self-introduction (i.e. three sentences)
// ****************************************

// Define image plane
def plane = getCurrentViewer().getImagePlane()

// Select greenland shark
def shark_x = [242, 353, 489, 676, 755, 720, 529, 341, 248, 181, 197] as double[]
def shark_y = [154, 169, 200, 309, 390, 466, 445, 354, 275, 214, 181] as double[]

def shark_roi = ROIs.createPolygonROI(shark_x, shark_y, plane)
def shark_anno = PathObjects.createAnnotationObject(shark_roi)

addObjects(shark_anno)

// 1st sentence
Thread.sleep(2000)

def line1_roi = ROIs.createPointsROI(300, 80, plane)
def line1_anno = PathObjects.createAnnotationObject(line1_roi)

def sentence_1 = "I'm greenland shark."
line1_anno.setName(sentence_1)

addObject(line1_anno)

// 2nd sentence
Thread.sleep(2000)

def line2_roi = ROIs.createPointsROI(600, 150, plane)
def line2_anno = PathObjects.createAnnotationObject(line2_roi)

def sentence_2 = "I can have a lifespan up to 400 years (the longest-living vertebrate)！"
line2_anno.setName(sentence_2)

addObject(line2_anno)

// 3rd sentence
Thread.sleep(2000)

def line3_roi = ROIs.createPointsROI(300, 550, plane)
def line3_anno = PathObjects.createAnnotationObject(line3_roi)

def sentence_3 = "I can start to have kids when I am roughly 156 years old."
line3_anno.setName(sentence_3)

addObject(line3_anno)

Thread.sleep(2000)

// Select all objects
selectAllObjects()

// ****************************************
// Export as raster image with overlays (annotations)
// ****************************************

def viewer = getCurrentViewer()
def name = getCurrentImageNameWithoutExtension()
def path_png = buildFilePath("d://GeneCard//00_Post//52_greenland-shark-400-years",
        "images",
        "${name}.png"
)

writeRenderedImage(viewer, path_png)

println 'Done!'
```

[给我买杯茶🍵](给我买杯茶.qmd)

## References